A plane with multiple people on board crashed at the Westlock Airport. 

The Westlock RCMP responded to a call for assistance on Sunday (Oct.10) at 11:10 a.m.

"A plane, with four occupants, flipped and sustained serious damage," police said in a release.

Three people were taken by ground ambulance to the hospital. The fourth passenger was reportedly in critical condition and had to be airlifted by STARS to an Edmonton hospital.

The cause of the crash is under investigation.

Information provided by FortSaskOnline