Authorities say U.S. soldier Matthew Livelsberger died by suicide in a Tesla Cybertruck that exploded at the Trump International Hotel in Las Vegas.

The National Highway Traffic Safety Administration announced it is investigating nearly 2.6 million Tesla vehicles over a remote driving feature.

U.S. regulators on Tuesday announced an investigation into 2.6 million Tesla vehicles following reports of crashes linked to technology that enables drivers to use a smartphone app to remotely summon their cars or direct them to another location.