Video released by the Port Authority of New York and New Jersey shows how flooding from Sandy damaged a key commuter rail line.

The video opens with water rising at the Exchange Place station in Jersey City.

It then shows water over the turnstiles in Hoboken and a torrent of water flowing from an elevator, down stairs and along the tracks.

Repairs continue with PATH trains operating on a limited basis more than two weeks after Sandy hit.

The commuter line links New Jersey and New York City.