The explosion outside the Trump International Hotel Las Vegas on New Year's Day is being investigated as a possible act of terrorism, sources said.

The suspicious blast is being investigated as a possible terrorist attack, three senior law enforcement members briefed on the matter told NBC News.

Chaos erupted outside Trump Tower in Las Vegas on Wednesday after a Cybertruck exploded into flames. The New Year's Day event killed one.

A Tesla Cybertruck exploded and caught fire outside the Trump International Hotel Las Vegas on New Year's Day.

The explosion of a Tesla Cybertruck outside the Trump International Hotel in Las Vegas on Wednesday could have been significantly worse, if not for the vehicle’s steel exterior, which helped contain the blast,

A Tesla Cybertruck explosion outside of Trump International Hotel in Las Vegas left one person dead and is now being investigated as a possible terrorist attack, according to authorities.

A Tesla Cybertruck exploded outside the Trump International Hotel in Las Vegas on New Year's Day, killing the person inside and injuring seven others.

Matthew Livelsberger -- the driver of the Tesla Cybertruck that exploded outside the Trump International Las Vegas Hotel -- shared "grievances" in two letters.

The Army veteran who drove a truck through a crowd in New Orleans and the Special Forces master sergeant who exploded a Tesla Cybertruck in Las Vegas last week briefly overlapped in their service at Fort Liberty,