The Maine Turnpike Authority says a bus fire shut down both southbound lanes of the Maine Turnpike Wednesday.

The agency announced the lane closures on it's Twitter account Wednesday afternoon.

The fire occurred between Exit 63 in Gray and Exit 53 in Falmouth.

In an update at about 2 p.m., the Turnpike Authority said it had opened one southbound lane to traffic.

Drivers were warned to expect moderate delays.

Crews cleared the scene of the crash shortly before 4 p.m.