Investigators believe a 65-year-old man had a medical emergency that led to a single-vehicle crash that killed him, Cobb County police said Friday.

Wiley Dale Pannell of Hiram was driving a silver, 2007 Mercury Grand Marquis eastbound on Macland Road, west of Lost Mountain Road, when he ran off the road about 2 p.m. Thursday, according to Sgt. Dana Pierce.

“As the car continued on the shoulder of the road, it finally came to a stop after striking a small tree and a light pole,” Pierce said in an emailed statement.

Pannell was taken by ambulance to WellStar Cobb Hospital, where he was pronounced dead, police said.

Anyone with information on the crash is asked to contact Cobb police at 770-499-3987.