Three teen girls and a teen boy sent to hospital after a crash early Saturday morning on McKercher Drive. (Saskatoon Fire Department)A collision early Saturday morning sent three teenage girls and one teenage boy to hospital.Around 12:15 a.m. the Saskatoon Fire Department got several 911 calls about a crash at 425 McKercher Drive, in the College Park East neighbourhood.When they arrived they found three vehicles involved, including a pick-up truck on its side.The vehicles were stabilized and cleared of fire hazards.No word on what caused the crash or how serious the teens injuries are.