New London — A sign posted outside Union Station reads, "No train service between New Haven - New York."

Amtrak service this morning continues to be suspended between New York and New Haven, with limited Amtrak service available between Boston and New Haven, after a Friday evening collision between two trains that injured 72 people and destroyed 2,000 feet of track.

Union Station was quiet early Monday morning except for the handful of people boarding the 6:55 a.m. Shore Line East towards New Haven.

Mike DiBella, an Amtrak customer service representative, said the best option for commuters this week who want to get to New York is to take the Amtrak or Shore Line trains to New Haven.

From New Haven, the Metropolitan Transportation Authority says a shuttle train will operate every 20 minutes between New Haven and Bridgeport stations.

Shuttle buses are running between Bridgeport and Stamford stations, where commuters will again board trains to Grand Central Terminal.

The MTA is warning customers that travel times will be longer than expected and trains will be significantly crowded. Officials said that Friday's collision will affect about 30,000 people who normally use the train.

DiBella said there were people Sunday who didn't know about the collision and were left stranded.

"Yesterday was out of the question," said DiBella. "You were either going to take a Greyhound bus, rent a car or hire a private taxi."

Officials said it will take several days to rebuild 2,000 feet of track, overhead wires and signals.