Mounties say all four people on board a private plane that crashed west of Williams Lake, B.C., on Sunday have survived with undetermined injuries.

hanceville bcHanceville, B.C.

The plane was reported overdue Sunday afternoon after leaving the Springhouse airstrip at about 8:30 a.m.

Police said it's believed the four people on board had been conducting animal surveys in the area of Big Creek Provincial Park when the aircraft's beacon relayed an intermittent signal indicating a hard landing or a crash.

At 1:40 p.m., the plane was located in the park, about 45 kilometres south of Hanceville, B.C., off Highway 20.

All four people on board survived the crash. Three were extracted and taken to hospital with undetermined injuries; the fourth was extracted several hours later.

The Transportation Safety Board has been advised of the incident and will conduct an investigation to determine the cause of the crash.