美国联邦调查局正在搜查纳什维尔郊区田纳西州安提阿的物业，并试图确定圣诞节早晨爆炸后发现的人类遗骸是否属于居住在那里的人。

消息人士告诉美国广播公司新闻，有问题的人叫安东尼·奎因·华纳。

消息人士称，联邦特工周六抵达安提阿与华纳相关的地点，进行法院授权的搜查。一张Google地图街景图片，其中显示了Warner的地址，该图片显示了院子围栏内的一辆RV，看上去与爆炸中使用的RV相似。

一位邻居告诉ABC新闻，那里经常停着一辆房车。

邻居霍赞·里贾布（Hozan Rejab）说：“房车已经在那里呆了一段时间；它并没有真正移动。它只是停留在那儿。所以这似乎令人怀疑它已经不存在了。”

里贾布说，住在这处房产的那个人经常保持自居，似乎一个人住。

法庭记录显示，华纳上个月以0美元的价格将物业的所有权转让给了一名洛杉矶妇女。执法人员告诉美国广播公司新闻，转移是调查的一部分，因为当局正在努力了解房车爆炸的动机。

周五早上停放的RV爆炸后，执法机构已收到近500条提示，造成了严重破坏。

美国检察官唐·科克伦（Don Cochran）在周六下午的新闻发布会上说：“我们将继续追随我们取得的一切领先优势。

联邦调查局特工道格·科涅斯基（Doug Korneski）当时拒绝证实是否找到了感兴趣的人，但他表示，联邦调查局“不在寻找其他主题”。

Korneski说：“我们正在寻找许多个人。” “目前，我们还没有准备好识别任何个人。”

执法人员告诉美国广播公司新闻，星期六从纳什维尔大规模犯罪现场收集的一些证据被送往弗吉尼亚州Quantico的联邦调查局犯罪实验室进行法医分析。

来自纳什维尔至少七个外地办事处的250多名联邦调查局人员正在调查中，其中包括特工，分析师和专业人员，他们正在进行采访，收集证据并与包括酒精，烟草，火器和毒物管理局在内的伙伴机构进行协调。炸药，以及州和地方调查人员。

执法人员说，爆炸后调查人员在现场擦拭残留物样本，这些残留物样本将被送往实验室分析，以确定爆炸装置中使用的化学物质类型。

巨大的犯罪现场不仅让侦探在地面上，而且在距离爆炸地点有几个街区的屋顶上搜寻，这些碎片可以帮助调查人员整理圣诞节早晨发生的事情以及原因。

当局说，目前没有已知的其他爆炸性威胁。

纳什维尔大都会警察局长约翰·德雷克在吹风会上说：“纳什维尔很安全。” “我们感到并且知道我们目前没有针对我们城市的威胁。”

当局敦促人们避开该地区，因为宵禁一直持续到周日下午。

在调查进行期间，德雷克要求居民和企业主在周六“保持耐心”。

“只知道您的企业是安全的，”德雷克在星期六下午的视频讲话中说。“我们在每个角落都有执法人员来保护该地区，因此不会允许任何人进入您的公司。”

警方说，从房车发出的公告说，一颗潜在的炸弹将在15分钟内引爆，然后在周五上午6:30爆炸，炸毁附近建筑物的窗户。当局说，爆炸被认为是故意的。

消息人士称，当局正试图确定为何选择该地点进行爆炸，并确定爆炸物的成分，并一直在收集样本送往实验室进行分析。

消息人士称，其他调查员正在与行为分析家合作，以了解可能是什么促使某人在警告人们离开后实施炸毁RV的“故意行为”。

爆炸发生前，军官们撤离了附近的建筑物。国防部于周五晚上确定他们为布伦纳·霍西警官。军官詹姆斯·卢伦（James Luellen）；迈克尔·西波斯（Michael Sipos）军官；军官阿曼达·打顶；詹姆斯·威尔斯军官；和蒂莫西·米勒中士。

纳什维尔市市长约翰·库珀说，在周五的新闻发布会上，这些军官被誉为英雄，因为他们“迅速采取行动，使人们远离危险。”

德雷克还说：“军官们今天挽救了生命。” “他们立即开始敲门，不知道炸弹是否会立即爆炸。他们不在乎自己，他们没有想到，他们在乎纳什维尔的居民。”

田纳西州州长比尔·李（Bill Lee）在周六上午参观爆炸现场后，还对纳什维尔警察和当地执法部门的“迅速行动”表示赞赏。

他在推特上说：“损失令人震惊，没有居民被杀是一个奇迹。”

三人受轻伤被送往医院。多个执法人员告诉ABC新闻，现场发现了人类遗体。截至周六下午，这些遗体尚未确定。

当局说，第二大街上至少有41座建筑物遭到了广泛破坏。

李说，他已要求唐纳德·特朗普总统发表紧急声明，“以支持正在进行的努力和救济。”

车辆在AT＆T传输大楼外爆炸。由于纳什维尔及其周边地区的设施损坏，服务继续受到影响。

AT＆T在周六早上的一份声明中说，一夜之间发生了大火，导致对该建筑物进行了评估。它说，团队已经在建筑物上钻孔，以试图重新连接关键设备的电源，并正在将服务重新路由到该地区的其他设施。

该公司在纳什维尔市中心建立了两个便携式蜂窝基站，“在纳什维尔地区和该地区还部署了许多其他便携式基站。”

由于调查人员仍然不知道这家电信巨头是否是预定目标，因此联邦当局已要求全国各地的警察增加对AT＆T设施的巡逻，以防万一。

根据ABC新闻获得的联邦公告的文字，“由于12月25日在纳什维尔发生的情况，我们要求巡逻部门对位于全国任何大都会建筑物内的任何AT＆T建筑物提供额外的监视。” “ AT＆T与执法部门，消防员和急救人员合作。我们是公共安全合作伙伴，为全国各地的机构提供了联系。”

美国联邦航空管理局（Federal Aviation Administration）已发布针对纳什维尔（Nashville）的临时飞行限制，将该空域归类为国防空域。美国联邦航空局警告说，不遵守这一限制的飞行员可能会被拘留。

联邦调查局和美国司法部酒精，烟草，火器和爆炸物局正在领导调查。

联邦调查局（FBI）要求任何有信息的人在其网站上提交小费。
 

Nashville latest: FBI investigating man's properties, remains tied to explosion

The FBI is searching properties in Antioch, Tennessee, a suburb of Nashville, and trying to determine if the human remains discovered after the explosion Christmas morning belong to the person living there, multiple law enforcement sources briefed on the investigation told ABC News.

Sources told ABC News the person in question is named Anthony Quinn Warner.

Federal agents arrived Saturday at locations connected to Warner in Antioch to conduct court-authorized searches, sources said. A Google Maps Street View image of Warner's address shows an RV in a fenced-in section of the yard that appears similar to the one used in the blast.

A neighbor told ABC News that an RV was often parked there.

"The RV's been there for a while; it doesn't really move. It just stays there. So this was something that looked suspicious that it's not there anymore," the neighbor, Hozan Rejab, said.

The man who lives at the property often kept to himself and seemed to live alone, Rejab said.

Warner transferred the title on the property last month for $0 to a Los Angeles woman, court records show. Law enforcement sources told ABC News the transfer is part of the investigation, as authorities work to understand the motive behind the RV explosion.

Law enforcement agencies have received nearly 500 tips after the parked RV exploded Friday morning, causing extensive damage.

"We are continuing to follow every lead we have," U.S. Attorney Don Cochran said during a press briefing Saturday afternoon.

FBI agent Doug Korneski declined to confirm at the time if a person of interest has been identified, but he said the FBI is "not looking for another subject."

"There are a number of individuals that we're looking at," Korneski said. "At this point, we're not prepared to identify any single individual."

Some of the evidence collected Saturday from the massive crime scene in Nashville was flown to the FBI crime lab in Quantico, Virginia, for forensic analysis, law enforcement sources told ABC News.

More than 250 FBI personnel from at least seven field offices are in Nashville working on the investigation, including special agents, analysts and professional staff, who are conducting interviews, collecting evidence and coordinating with partner agencies including the Bureau of Alcohol, Tobacco, Firearms and Explosives, and state and local investigators.

Post-blast investigators swabbed the scene for residue samples that will be sent for lab analysis to determine the types of chemicals used in the explosive device, law enforcement sources said.

The enormous crime scene has agents scouring not only at ground level, but on rooftops, some blocks away from the seat of the blast, for fragments that could help investigators piece together what happened on Christmas morning and why.

There are no known additional explosive threats at this time, authorities said.

"Nashville is safe," Metro Nashville Police Chief John Drake said during the briefing. "We feel and know that we have no known threats at this time against our city."

Authorities urged people to avoid the area, as a curfew is in effect until Sunday afternoon.

Drake asked residents and business owners to "be patient" Saturday while the investigation is underway.

"Just know that your businesses are safe," Drake said in a video address Saturday afternoon. "We have law enforcement officers at each corner to protect the area, so no one will be allowed access into your business."

Announcements coming from an RV said a potential bomb would detonate within 15 minutes, police said, before it exploded around 6:30 a.m. Friday, blowing out the windows of nearby buildings. The explosion is believed to have been an intentional act, authorities said.

Authorities are trying to determine why that location was selected for detonation and the composition of the explosive, sources said, and have been gathering samples to send to a lab for analysis.

Other investigators are working with behavioral analysts to understand what might have prompted somebody to commit the "intentional act" of blowing up the RV after warning people to stay away, sources said.

Officers worked to evacuate nearby buildings before the explosion. The department identified them Friday night as Officer Brenna Hosey; Officer James Luellen; Officer Michael Sipos; Officer Amanda Topping; Officer James Wells; and Sergeant Timothy Miller.

The officers were lauded as heroes during a press conference Friday, as they "took swift action and directed people away from danger," Nashville Mayor John Cooper said.

"The officers saved lives today," Drake also said. "They immediately began knocking on doors, not knowing if the bomb was going to go off immediately. They didn't care about themselves, they didn't think about that, they cared about the citizens of Nashville."

Tennessee Gov. Bill Lee also praised the "swift action" of Nashville police and local law enforcement after touring the site of the explosion Saturday morning.

"The damage is shocking and it is a miracle that no residents were killed," he said on Twitter.

Three people were taken to the hospital with minor injuries. Human remains were found at the scene, multiple law enforcement sources told ABC News. The remains have not been identified as of Saturday afternoon.

At least 41 buildings on Second Avenue were damaged, some extensively, authorities said.

Lee said he has requested an emergency declaration from President Donald Trump "to support ongoing efforts and relief."

The vehicle exploded outside an AT&T transmission building. Service continues to be impacted in Nashville and surrounding areas because of damage to its facilities.

A fire reignited overnight, leading to the evaluation of the building, AT&T said in a statement Saturday morning. Teams have drilled holes into the building in an attempt to reconnect power to critical equipment, and are also rerouting services to other facilities in the area, it said.

The company has set up two portable cell sites in downtown Nashville, "with numerous additional portable sites being deployed in the Nashville area and in the region," it said.

Because investigators still don't know if the telecom giant was the intended target, federal authorities have asked police around the country to increase patrols around AT&T facilities as a precaution.

"Due to the circumstances that took place Dec, 25th in Nashville, we ask that patrol divisions provide extra watch on any AT&T building located in any metropolitan building across the nation," according to the text of a federal bulletin obtained by ABC News. "AT&T partners with law enforcement, firefighters and first responders. We are public safety partners giving connectivity to agencies across the country."

The Federal Aviation Administration has issued a temporary flight restriction for Nashville, classifying the airspace as National Defense Airspace. Pilots who do not follow the restriction could be detained, the FAA warned.

The FBI and the U.S. Department of Justice's Bureau of Alcohol, Tobacco, Firearms and Explosives are leading the investigation.

The FBI is asking anyone with information to submit a tip on its website.