The Oklahoma Highway Patrol is investigating a fatal plane crash in Bryan County, near Durant, on Monday morning.
According to reports, the plane went down in the Red River in the rural part of the county.
Troopers told KXII, at least one person is dead but it is unknown how many were on board.
Authorities are working to get to the plane using an airboat.
This is a developing story. More information will be posted as it becomes available.