One person has been injured, possibly with life-threatening injuries, in a mid-morning accident in Tucson.
It happened about 10:30 a.m. at First Avenue and Glenn.
Tucson Police and Fire officials say the accident involved a passenger car and a larger truck. Fire officials say one person, believed to be in his or her 20's, was transported to the hospital with serious injuries.
Authorities have the intersection closed in all directions and say it may stay closed until early Thursday afternoon.