A Tesla Cybertruck exploded in flames outside the Trump International Hotel Las Vegas on Wednesday, killing the driver and injuring seven others, and the FBI was investigating whether the blast was an act of terrorism, officials said.

Videos taken by witnesses inside and outside the hotel showed the vehicle exploding and flames pouring out of it, as it sat just outside the hotel.

The incident occurred just hours after a man drove a truck into crowds of New Year’s Day revelers in New Orleans, killing 15.

The Trump International Hotel in Las Vegas is part of the Trump Organization, the company of President-elect Donald Trump, who will return to the White House on Jan. 20. Tesla (TSLA.O) CEO Elon Musk was a key backer of Trump in his 2024 presidential campaign and is also an adviser to the incoming president.

“Obviously a Cybertruck, the Trump hotel - there’s lots of questions that we have to answer,” Las Vegas Metropolitan Police Department Sheriff Kevin McMahill said at an afternoon press conference.

FBI special agent in charge Jeremy Schwartz later told reporters that it was not yet clear whether the blast was an act of terrorism.

“I know everybody’s interested in that word, and trying to see if we can say, ‘Hey, this is a terrorist attack.’ That is our goal, and that’s what we’re trying to do,” Schwartz said.

He added that the FBI had identified the person driving the vehicle, which had been rented in Colorado, but was not yet ready to publicly identify the driver.

Musk said the blast was unrelated to the Cybertruck itself.

“We have now confirmed that the explosion was caused by very large fireworks and/or a bomb carried in the bed of the rented Cybertruck and is unrelated to the vehicle itself,” Musk said in a post on X. “All vehicle telemetry was positive at the time of the explosion.”

Telemetry involves the automatic collection of data from remote sources, transmitting it back to a central source so it can later be analyzed.

A person was found dead inside the 2024 model-year Cybertruck and seven people sustained minor injuries from the explosion, McMahill said. He added that both the Cybertruck and the vehicle used in the New Orleans attack had been rented through car-sharing service Turo.

McMahill said the Cybertruck pulled up to the Trump building at 8:40 a.m. local time (1640 GMT). He said police were mindful of the New Orleans attack that occurred earlier on Wednesday. The FBI said a potential explosive device was found in the vehicle used in the New Orleans attack.

Las Vegas firefighters responded four minutes after the vehicle fire was reported and extinguished it. Two of the injured people were transported to hospitals with minor injuries. The Trump Hotel was evacuated after the incident and most of the visitors were moved to another hotel.

Eric Trump, executive vice president of the Trump Organization and a son of President-elect Trump, posted about the incident on X. “Earlier today, a reported electric vehicle fire occurred in the porte cochère of Trump Las Vegas,” he wrote, referring to the building’s covered entrance area.