Jay Leno had to cancel a speaking appearance in Las Vegas Sunday due to a “very serious medical emergency.” 

According to TMZ, Leno is being treated at a burn center after being burned in a car fire in a Los Angeles garage Sunday. 

One of the cars in the garage burst into flames while the former “Tonight Show” host was there, TMZ reported. The left side of his face was reportedly seriously burned. 

Leno was set to perform at Forum 2022, a financial conference run by The Financial Brand, but was unable to attend due to a medical emergency, an email to the conference’s attendees said. 

“His family was not able to provide us very many details, but there was a very serious medical emergency that is preventing Jay from traveling,” the email, obtained by People, said. “All we know is that he is alive, so our prayers go out to him and his family tonight.”

Representatives for Jay Leno and for the Financial Brand did not immediately respond to Insider’s requests for comment.

This story is developing. Please check back for updates.