Amtrak passengers along the Northeast Corridor are experiencing delays Wednesday as a result of a water-main break south of Baltimore.
Limited service between Baltimore and Washington was restored in the afternoon after being shut down for most of the morning.
However, Amtrak said the impact is still being felt from Boston to Miami and that major delays will continue south of Baltimore.
An Amtrak spokeswoman urged riders to call 800-USA-Rail and said employees are trying to alert passengers who gave contact information on their reservations.
Crews are trying to fix the break and clear the tracks of mud, trees and other debris.
The break in the 36-inch-wide pipe occurred before 7:45 a.m. and is north of the Baltimore/Washington International Thurgood Marshall Airport.