JACKSONVILLE, Fla. -

A man is in critical condition after his pickup truck left the road and went off an overpass in Northwest Jacksonville Saturday, according to the Jacksonville Sheriff's Office. 

It happened around 3:30 p.m. in the 3700 block of Bright Avenue.

An officer at the scene told Channel 4 that for unknown reasons, the man's pickup truck left the roadway and went over an overpass, landing in a parking lot below. 

JSO said the truck struck a cement pole that was already on the ground. They also said the driver was thrown from the pickup.

JSO said the driver was taken to the hospital with life-threatening injuries. His name was not immediately released.