美国的死亡人数冲浪，佛罗里达州官员说，住宅建筑倒塌事故已经上升到五起。

迈阿密戴德县市长丹妮尔·莱文·卡瓦在周六晚上的新闻发布会上说，一具尸体从尚普兰塔南公寓的瓦砾中被发现。

此外，市长说，搜救人员发现了“一些人类遗骸”。这些额外的遗骸必须通过脱氧核糖核酸测试来鉴定;市长说，家庭成员被要求提交样品。死者中有三人已经确认身份。

莱文·卡瓦说，搜寻工作持续了第三天，仍有156人失踪，130人下落不明。

莱文·卡瓦说，瓦砾中蔓延并释放出灰色烟雾的大火阻碍了搜索工作，尽管第一反应者一整天都在取得进展。

“我们的首要任务仍然是搜救和尽可能挽救生命，”她说。

克里斯托瓦尔·埃雷拉-乌拉什克维奇/环保局

迈阿密戴德救援队在部分倒塌的12层公寓楼1号中进行搜索

市长说，大楼倒塌的原因仍不清楚，但他承诺，“我们将利用我们所有的地方、州和联邦资源进行全面彻底的调查。”

莱文·卡瓦(Levine Cava)此前曾宣布对所有40年或以上的建筑进行审计，以确保每栋建筑都在未来30天内完成重新认证过程。她说，她不知道2018年的结构报告显示了周五晚些时候发现的裂缝和洪水的证据。

冲浪副市长蒂娜·保罗周六告诉美国广播公司新闻，结构工程师也在调查该建筑群其他建筑的安全，包括尚普兰塔东。

“昨晚我们收到了尚普兰东区大楼车库状况的照片，看起来不太好，所以他们正在评估大楼是否安全，”保罗说，并指出停车场有大块的柱子不见了。“希望(周日)我们能收到卫星信息，这也能让我们更好地了解漏洞所在，然后我们就能知道是否需要疏散人群。”

冲浪小镇的领导人周五晚上召开了一次紧急会议，他们讨论了几个小时前发生的事情致命事件在尚普兰塔南和必须做什么来避免类似的悲剧在未来。

专员Eliana Salzhauer说，该镇需要提高重新认证过程的要求，包括每栋建筑每40年需要完成的一系列安全检查。詹姆斯“吉姆”麦克吉尼斯，镇上的建筑官员，同意了。

麦克吉尼斯说:“安德鲁飓风永远改变了佛罗里达州的建筑法规，所以这场可怕的悲剧，这是一场全国性的悲剧，将改变建筑法规，因为它们与认证有关。”。

这尚普兰塔南公寓据Surfside官员称，建于20世纪80年代的该公司已准备好接受40年的重新认证。多年来，它已经通过了广泛的检查，由于恶化，公寓协会正准备进行更新和维修。

奥克塔维奥·琼斯/路透社

照片:一个人在一栋部分倒塌的居民楼的受害者纪念碑前祈祷

官员们说，屋顶正在施工，由于附近有潜在的建筑项目，整个建筑都在接受检查。该协会的律师肯尼斯·德克托(Kenneth Direktor)说，建筑计划已经提交给了冲浪城，但唯一开始的工作是在屋顶上。

德克托告诉美国广播公司新闻，该建筑群有被水损坏的迹象，但这在海滨地区很常见，不会仅仅导致坍塌。他说，他从未被警告过该建筑或其建筑用地的任何结构问题，当2015年因水损坏和建筑外墙裂缝提起诉讼时，工程师们被雇来完成检查过程。

在星期五的紧急会议上，麦克吉尼斯说他在尚普兰南塔的屋顶上，检查屋顶锚，在它倒塌前14小时。他说，“没有过多的设备或材料”会导致大楼倒塌。

伊娃·玛丽·乌兹卡特吉/法新社通过盖蒂图像

迈阿密戴德消防队员从起重机向部分坍塌的废墟喷水.

在倒塌前三年，工程师们指出了建筑物被洪水淹没、开裂和腐蚀的证据。A2018年结构性现场服务报告莫拉比托咨询公司进行的调查表明，尚普兰塔南公寓车库的柱子有裂缝，需要更换。

“在混凝土柱、梁和墙上观察到了大量不同程度的裂缝和剥落，”报告说。“虽然有些损坏很小，但大多数混凝土损坏需要及时修复。”

该报告还提到，公寓阳台上有裂缝，支撑车库上方广场/游泳池的混凝土框架板之前经历了一些混凝土修补和环氧树脂注入裂缝，但“工作表现不太令人满意，需要再次完成”。

在2018年文档莫拉比托咨询公司(Morabito Consultants)估计，总“修复可能的建设成本”为910万美元。该公司受雇对该公寓楼的40年重新认证进行检查。

其中包括380多万美元用于“车库、入口和泳池平台修复”，320万美元用于“立面修复”，629，760美元用于“建筑电气修复”，253，824美元用于“建筑机械修复”

倒塌后，其他尚普兰塔也将接受检查。冲浪市长查尔斯·伯克特在周五的会议上说:“不采取一些措施来解决姐妹楼的问题是不明智的。”。

根据迈阿密戴德消防救援助理局长雷德·贾达拉的说法，海滨综合建筑有136个单元，其中大约55个在东北走廊被摧毁。剩余建筑中的人们被疏散。

自周四晚上以来，约130名消防队员一直在参与搜救工作，在机械、声纳设备和训练有素的狗的帮助下，在废墟中寻找幸存者。贾达拉说，第一反应者没有听到任何声音，但他们听到了声音。

玛丽亚·阿莱杭德娜·卡多纳/路透社

一名男子挂起了冲浪区部分坍塌的失踪居民的标志，救援人员在那里

莱文·卡瓦(Levine Cava)表示，包括结构工程师在内的专家在现场帮助救援人员在搜索幸存者时保持安全，因为在剩余结构附近工作仍然存在“极端风险”。迈阿密戴德县的一名官员告诉美国广播公司新闻，大楼上悬挂着电线，周五，大火燃烧了一整天。

“当他们工作时，碎片正落在他们身上，”莱文·卡瓦星期五告诉记者。“但他们在继续前进，因为他们非常有动力，每天都在现场冒极大的风险。”

迈阿密戴德消防救援发言人玛吉·卡斯特罗描绘了一幅正在进行的富有挑战性的救援行动的画面早安美国“星期六，在处理火灾和恶劣天气。

“我们正在努力工作。我们一天24小时都在工作，我们非常努力地工作，以确保我们能找到所有仍在废墟中的受害者。我们正在努力确保这些人能够与他们的家人团聚，”卡斯特罗说。

她描述了“缓慢而有条理的过程”，救援队需要仔细检查瓦砾，然后才能接触到它。

“我们在废墟中寻找，我们的工程师告诉我们这看起来是一条我们可以走的好路。我们需要建造支撑物，我们需要建造能在你挖掘废墟时保护你安全的建筑。清除瓦砾的过程也是一个非常繁琐的过程，因为事情可能会相互倾斜——我们移除一块，我们可能会引发另一次坍塌。所以这是一个非常乏味的过程，”卡斯特罗说。

阿尔·迪亚兹/迈阿密先驱报

南佛罗里达城市搜救队在12层海滨公寓寻找幸存者

该部门还利用狗进入更狭窄的空间，检测“哪怕是微小的移动”，并嗅出可能的受害者的气味。

卡斯特罗说:“一旦一只狗袭击了一个特定的区域，我们就通过声纳检测将精力集中在那个区域，声纳检测可以检测到有人试图敲击一块金属或一块混凝土时哪怕是最轻微的擦伤，然后我们就会慢慢地穿过那个区域，到达任何可能在那里的人。”

莱文·卡瓦说，部分坍塌的原因尚不清楚，尽管到目前为止没有证据表明存在违规行为。根据白宫的一份声明，迈阿密戴德警察局正在领导对这一事件的调查，乔·拜登总统已经批准了佛罗里达州的一项紧急声明，授权联邦应急管理局“确定、动员和酌情提供减轻紧急情况影响所需的设备和资源”。

Surfside building collapse latest: Death toll rises to 5, additional remains found

The death toll in theSurfside,Florida, residential building collapse has risen to five, officials said.

A body was recovered from the rubble of the Champlain Towers South condominium, Miami-Dade County Mayor Daniella Levine Cava said at a press briefing Saturday evening.

Additionally, search and rescue crews found "some human remains," the mayor said. Those additional remains will have to be identified through DNA testing; family members have been asked to submit samples, the mayor said. Three of the deceased have been identified.

As search efforts continued for a third day, 156 people still remain missing and 130 people have been accounted for, Levine Cava said.

The search effort was hampered by a deep fire in the rubble that was spreading and releasing gray smoke, though first responders were able to make progress throughout the day, Levine Cava said.

"Our top priority continues to be search and rescue and saving any lives that we can," she said.

The cause of the building's collapse is still unknown, the mayor said, but promised, "we are going to conduct a full and thorough investigation with all our local, state and federal resources."

Levine Cava had previously announced an audit of all buildings that are 40 years old or more to make sure each has completed the recertification process within the next 30 days. She said she wasn't aware of the 2018 structural report that showed evidence of cracks and flooding that came to light late Friday.

Structural engineers are also investigating the safety of the complex's other buildings, including Champlain Towers East, Surfside Vice Mayor Tina Paul told ABC News Saturday.

"Last night we had received photographs of this condition of the garage in the Champlain East building, and it doesn't look right, so they are assessing whether or not the building is safe," Paul said, noting that there were chunks of columns missing in the parking garage. "Hopefully we receive satellite information [on Sunday] that will also give us a better picture of where the vulnerabilities lie, and then we'll know whether we need to evacuate people or not."

Surfside town leaders held an emergency meeting Friday night where they discussed what happened in the hours beforethe fatal incidentat Champlain Towers South and what must be done to avoid a similar tragedy in the future.

Commissioner Eliana Salzhauer said the town needs to increase the requirements of the recertification process, which includes a series of safety inspections that every building needs to complete every 40 years. James "Jim" McGuinness, the town's building official, agreed.

"Hurricane Andrew changed the Florida building codes forever, so this terrible tragedy, which is a national tragedy, is going to change the building codes as they relate to certification," McGuinness said.

TheChamplain Towers South condominium, built in the 1980s, was up for its 40-year recertification, according to Surfside officials. Over the years, it had gone through extensive inspections due to deterioration, and the condo association was preparing to make updates and repairs.

The roof was undergoing work and the entire building had been under scrutiny due to potential construction projects nearby, officials said. Kenneth Direktor, a lawyer for the association, said the construction plans had already been submitted to the Town of Surfside but the only work that had begun was on the roof.

Direktor told ABC News there were signs of water damage to the complex, but that is common for oceanfront properties and would not have solely caused the collapse. He said he was never warned of any structural issues with the building or the land it was built on, and when a lawsuit was filed in 2015 over water damage and cracks on the outside wall of the building, engineers were hired to go through the inspection process.

At the emergency meeting Friday, McGuinness said he was on the roof of the Champlain Towers South, inspecting the roof anchors, 14 hours before it collapsed. He said there was "no inordinate amount of equipment or materials" that would cause the building to fall.

Three years before the collapse, engineers pointed out the evidence of flooding, cracking and corrosion in the building. Astructural field service report from 2018conducted by Morabito Consultants states that, among other things, the columns in the Champlain Towers South Condominium garage were cracked and needed to be replaced.

"Abundant cracking and spalling of various degrees was observed in the concrete columns, beams, and walls," the report says. "Though some of this damage is minor, most of the concrete deterioration needs to be repaired in a timely fashion."

The report also mentions there were cracks on the apartment balconies and that the concrete framed slab that supported the plaza/pool above the garage had undergone some previous concrete patching and epoxy injection of cracks, but the "work has performed less than satisfactorily and needs to be completed again."

In a 2018document, Morabito Consultants, the firm hired to conduct inspection for the condo building's 40-year recertification, estimated the total "remediation probable construction cost" to be $9.1 million.

This includes more than $3.8 million for "garage, entrance and pool deck remediation," $3.2 million for "facade remediation," $629,760 for "building electrical remediation" and $253,824 for "building mechanical remediation."

Other Champlain Towers will also be inspected following the collapse. "It would be imprudent not to take some types of steps to address that issue with the sister building," Surfside Mayor Charles Burkett said during the Friday meeting.

The oceanfront complex had 136 units, and approximately 55 of them were destroyed along the northeast corridor, according to Miami-Dade Fire Rescue Assistant Chief Raide Jadallah. People in the remaining structure were evacuated.

About 130 firefighters have been taking part in the search and rescue efforts since Thursday night, looking for survivors among the debris with the help of machinery, sonar devices and trained dogs. First responders have not heard any voices coming from the pile, but they have picked up sounds, Jadallah said.

Levine Cava said there are experts, including structural engineers, on site to help keep rescuers safe while they search for survivors, as there is still "extreme risk" in working near the remaining structure. A Miami-Dade county official told ABC News there are wires dangling from the building, and on Friday, fires flared up throughout the day.

"Debris is falling on them as they do their work," Levine Cava told reporters Friday. "But they are proceeding because they are so motivated and they are taking extraordinary risk on the scene every day."

Miami-Dade Fire Rescue spokesperson Maggie Castro painted a picture of the challenging rescue operation underway on "Good Morning America" Saturday, in dealing with fires and difficult weather.

"We're working diligently. We work 24 hours a day, and we work very hard to make sure that we can get to all these victims that could still be in this rubble. We're working to make sure that we can reunite these people with their families," Castro said.

She described the "slow and methodical process" where rescue teams need to carefully inspect rubble before it can be touched.

"We look through debris, our engineers tell us this looks like a good path that we can take. We need to build shoring, we need to build structures that will keep you safe as you dig through this rubble. The process of removing rubble is also a very tedious process because things can be leaning against one another -- we remove one piece, we could set off another collapse. So it is a very tedious process," Castro said.

The department is also using dogs to get into tighter spaces to detect "even the slight movement" and sniff out the scent of possible victims.

"Once a dog hits on a specific area, we focus our energy in that area by using sonar detection that can detect even the slightest little scratch of someone trying to tap against a piece of metal or piece of concrete, and then we will slowly dig our way through that area to reach anyone that is potentially there," Castro said.

The cause of the partial collapse remains unknown, though so far there is no evidence of foul play, according to Levine Cava. The Miami-Dade Police Department is leading an investigation into the incident and President Joe Biden has approved an emergency declaration in Florida, authorizing the Federal Emergency Management Agency to "identify, mobilize, and provide at its discretion, equipment and resources necessary to alleviate the impacts of the emergency," according to a statement from the White House.