The first occurred about midnight when a Chevy Tracker traveling north on South Island Road missed the stop sign and slammed into a Ford Taurus traveling west on Grafton Eastern Road, according to the Ohio Highway Patrol.
Trevor Parsh, 19, of Grafton, was driving the Tracker when the impact flipped the vehicle onto its side. He received minor injuries and was treated at EMH Regional Medical Center.
His passenger, Katelyn Chopcinski, 18, of North Ridgeville, had to be freed from the vehicle by rescue workers. She was flown to MetroHealth Medical Center in Cleveland, where she was listed in good condition Friday night.
In the Taurus, David Santee, 25, of Brunswick, and his wife, Laura Santee, 22, received minor injuries for which they were treated at Medina General Hospital.
The second crash occurred at 6:40 a.m., roughly 1,000 feet away from the earlier accident.
Troopers said Daniel S. Koston, 45, of Brunswick, was traveling east in a Mercury Villager when he slammed into a westbound Ford Expedition when the Expedition went left of the center line, troopers said.
Koston was flown to MetroHealth Medical Center in Cleveland, where he remained in critical condition Friday night.
No one in the Expedition was injured. The driver, Jordan T. Szpak, 17, of Valley City, was accompanied by his 14-year-old brother and 7-year-old sister in the vehicle.
Lt. Glenn Peterson of the Elyria post of the Highway Patrol said he didn`t suspect the location of the accidents had anything to do with road conditions at the time and said the proximity and timing of the crashes likely were coincidental.