The LIRR said the issues stemmed from an Amtrak power problem in a tube of the East River Tunnel. Amtrak said crews were doing work on a line outside the East River tunnel overnight, and the repairs were not done by the morning rush.

Amtrak will delay the start of the construction on the East River Tunnel Rehabilitation project by two weeks after learning the Long Island Rail Road’s (LIRR) East-Bound reroute project is delayed. The three-year project calls for repairing two of the tunnel’s four tubes,