A Tesla Semi without a trailer suddenly veered off an Interstate into a tree (like so many other Tesla do) and exploded with such an intense 1,000 degree fire, it shut all lanes down.

The crash occurred around 3:15 a.m. near Emigrant Gap where an electric vehicle traveling eastbound at the Laing Road offramp crashed onto the right shoulder and into trees, according to the California Highway Patrol’s incident log. Officer Jason Lyman, a spokesman for the CHP’s Gold Run office, said that only one vehicle was involved and that the driver was not injured. Lyman said the white Tesla Semi truck was without a trailer when it was headed uphill west of Yuba Gap. Investigators were still trying to piece together what led the Tesla to leave the roadway, he said.

Headed uphill without a trailer?

That’s not a typical loss of control for a Semi, as it could just stop under its own weight. Crashed using the offramp? The 3am suggests mistake, but the Tesla Semi also has a sordid history of critical failures like screens going blank and sudden steering loss.

Police say all eastbound traffic was turned around. Westbound traffic was diverted. And they called the Tesla explosion a toxic plume.