MEDICINE HAT, Alta. -- Mounties say three people are dead after a small plane crashed after taking off in Medicine Hat, Alta., on Saturday.

RCMP spokesman Curtis Peters says the plane took off around 10:15 p.m. from Medicine Hat Regional Airport en route to Moose Jaw, Sask.

Peters says the flight was scheduled to be about 90 minutes long, but when it did not arrive, a search for the aircraft began.

He says the plane was found Sunday morning in Irvine, Alta., about 30 kilometres east of Medicine Hat.

Peters says all three people who were on board the plane have been pronounced dead.

He did not release the identities of the deceased and the cause of the crash is still being investigated.