A motorcyclist was killed when he crashed into a truck on Tucson's north side Saturday morning, police say.
It appears he ran a red light before the crash at the 1st Avenue and Fort Lowell Road intersection, said Sgt. Pete Dugan, a Tucson police spokesman.
The man was pronounced dead shortly after arriving to a hospital.
Dugan said the truck driver remained at the scene to cooperate with detectives.
Officers shut down the intersection around 5:30 a.m. It was reopened several hours later.
No further information has been released.