"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," Tesla's Elon Musk wrote on X, "All vehicle telemetry was positive at the time of the explosion."
https://www.zerohedge.com/technology/cybertruck-blew-outside-trump-hotel-vegas
Got it thanks