Amtrak announced this afternoon that Acela Express service will resume Monday in a limited capacity, following a successful test of a temporary repair to the electrical system that powers the Metro-North Railroad section of the Northeast Corridor.

Amtrak cautioned that because Northeast Regional service will continue operating under diesel power, delays are possible.

The first northbound Acela Express departure from New York will be Train 2190, scheduled to leave Penn Station at 6:20 a.m. The first southbound departure from Boston will be Train 2153, scheduled to leave South Station at 6:05 a.m.

Amtrak said in a statement that it appreciates the hard work that went into the temporary repair and continues to coordinate with Metro-North and other agencies to determine the safest and quickest way to resume normal operations. Service plans for Tuesday and the rest of the week will be announced Monday.

The failure of a high voltage power line last week resulted in the disruption of commuter train service in Connecticut and New York City suburbs and led to backups on Interstate 95.