A two car crash has sent four people to hospital, two with serious injuries.

Ottawa police say the crash happened at Roger Stevens Dr. and Dwyer Hill Rd. around 6:!5 on Saturday night.

According to paramedics, a 9-year-old girl was taken to CHEO with serious injuires, while a 47-year-old woman was airlifted to the Ottawa Hospital trauma centre with head and chest injuries.

A 24-year-old man with moderate injuires and 19-year-old woman with minor injuries were also taken to hospital.

Police say the roads have re-opened since the crash. They continue to investigate.