Norwalk (AP) - A bridge that became stuck open along the Connecticut shoreline is disrupting train service on Metro-North Railroad and Amtrak.

The Metropolitan Transportation Authority says the Norwalk River Bridge in South Norwalk failed to close after a boat passed under the tracks Sunday afternoon, and workers needed to realign a slipped gear to make it work again.

Metro-North ordered buses to set up a shuttle service over the river between its Norwalk and South Norwalk stations, though trains were still operating between New Haven and East Norwalk. Metro-North spokeswoman Marjorie Anders tells the News Times of Danbury that service over the bridge was restored after more than three hours.

Amtrak service between New York City and New Haven was also disrupted.