ST. JOHNSBURY, Vt. (AP) — An East Burke man was found dead in his vehicle following a crash on Interstate 91 in St. Johnsbury early Wednesday, Vermont State Police said.

It appears that Donald Burrington, 62, may have suffered a medical event before his van crossed into the median and rolled over, police said.

Police responded to the report of the crash shortly after 6:30 a.m.

An autopsy is being performed, police said.