Search crews scouring the North Shore Mountains for signs of a missing cargo plane confirmed they have located wreckage.

North Shore Rescue dispatched members to help look for Carson Air Flight 66, which vanished from radar shortly after taking off from Vancouver International Airport Monday morning.

There were two pilots on board, but it’s yet unclear whether either of them have been located.

A major search effort was launched by the Joint Rescue Coordination Centre, which sent aircraft to follow the plane’s intended flight plan to Prince George and helicopters to search the mountains north of Vancouver.

Capt. Stu Robertson said the helicopters were focusing on an area of rough terrain located just northeast of Grouse Mountain.

“That’s where the aircraft was last seen by air traffic controller radar,” Robertson said.

The Swearingen SA 226 aircraft was expected to arrive just hours after its departure, but lost contact around 20 minutes after takeoff.

Both pilots on board are employees of Carson Air. The company, which partners with FedEx and Dynamex to transport cargo throughout B.C., Alberta and Saskatchewan, hasn’t commented about the incident.

The Vancouver Airport Authority said YVR operations have not been affected.