GADSDEN, Alabama -- Gadsden Police are investigating an incident Sunday when a man supposedly jumped from a moving vehicle during an argument with his girlfriend.

Capt. Bobby Jackson said the incident occurred at approximately 8:50 p.m. in the 1800 block of Rainbow Drive. A 21-year-old man was a passenger in a vehicle driven by his ex-girlfriend. The woman told police they had been arguing virtually all day about "stupid stuff."

The woman told police the man told her "I'm going to jump out of the car." When the man jumped, the car was traveling approximately 35 miles per hour, Jackson said.

The man was later airlifted to UAB to treat him for severe head injuries.