Transit authorities are seeking to add language to an agreement that would allow the state to fine Amtrak for future service disruptions along Massachusetts Bay Transportation Authority tracks.

The Boston Globe reports that the MBTA is renegotiating its agreement with Amtrak over the government-funded railroad service's use and maintenance of heavily-traveled MBTA tracks between Boston and Rhode Island.

Transportation Secretary Stephanie Pollack said Monday that officials felt obligated to pursue the fines in response to delays caused Sunday by Amtrak's maintenance work on a South Station signal system.

Officials say 40 of 60 commuter train runs Sunday were either delayed or canceled.

Pollack said it's "unfortunate" that the MBTA had to resort to pursuing fines.

Spokeswoman Chelsea Kopta issued a statement in which Amtrak apologized for the delays.