At least one person was killed and seven others wounded when a Tesla Cybertruck exploded outside a hotel owned by U.S. President-elect Donald Trump in Las Vegas, police said Wednesday.

The electric vehicle pulled up to the Trump International Hotel’s glass entrance before a “large explosion,” Las Vegas Sheriff Kevin McMahill told reporters.

Video footage shows the stainless steel truck parked at the hotel entrance before bursting into flames, followed by smaller explosions that appeared similar to fireworks.

McMahill said there was “one deceased individual inside the Cybertruck,” while seven people sustained “minor” injuries.

Tesla CEO Elon Musk said the explosion was “caused by very large fireworks and/or a bomb carried in the bed of the rented Cybertruck,” adding in a post on X that it was “unrelated to the vehicle itself.”

Earlier, Musk said the “whole Tesla senior team” was investigating the blast, adding, “We’ve never seen anything like this.”

Police said they are still working to establish the cause of the explosion.

Musk, who backed Trump in the November election and was named by the Republican to head a commission to trim government spending, said he would post more information “as soon as we learn anything.”

President Joe Biden was briefed on the explosion and directed his team to offer any federal assistance needed, the White House said.

Biden had earlier been briefed on a car-ramming attack in New Orleans that left at least 10 people dead Wednesday.

McMahill referenced that attack but did not explicitly link the two incidents, saying authorities in Las Vegas were “taking all of the precautions that we need to keep our community safe.”

He said the hotel had been evacuated.