Seven people were killed in a head-on collision Thursday on I-80 near Tooele, the Utah Highway Patrol said.

Names were withheld pending notification of kin.Lt. Ron Ostler said a compact car carrying five people from Salt Lake City was going the wrong way and collided with a mid-size car carrying three people from Medford, Ore., about 4:30 p.m. Thursday.

The sole survivor was in critical condition at the University of Utah Hospital in Salt Lake City.