INNISFIL, Ont. -- Police say four people are injured following a small plane crash in Innisfil.

South Simcoe police say they were called to Sky Dive Toronto early Friday afternoon.

Investigators say the small, single-engine aircraft was attempting a take off on the grass airfield at the skydiving facility when the pilot lost control and it skidded into a ditch.

Five people were aboard at the time, including the pilot, who was not injured.

Two passengers were treated by paramedics at the scene, while two others were taken to a local hospital with minor injuries.

The Transportation Safety Board of Canada will be investigating.