This post has been updated.

MARC and Amtrak service has been restored between Baltimore and Washington after falling power wires halted train service for several hours.

Amtrak resumed service between D.C. and Baltimore shortly before 11:15 a.m., though trains are operating at restricted speeds south of BWI Airport, according to the rail agency.

MARC trains on the Penn Line resumed service shortly after 12:15 p.m., though riders should expect delays to linger into the afternoon, said Terry Owens, a spokesman for the Maryland Transit Agency.

Only two of the three tracks had reopened, Owens said.

Owens encouraged riders to consider taking the Camden Line or Metro if at all possible, saying that the Metro option would remain open through the evening commute.

Trains were halted for hours after MARC Penn Line train 415 encountered sagging catenary wires south of BWI Airport at about 7:30 a.m.  Amtrak canceled trains 184, 185 and 2104, while train 2107 ended service in Philadelphia.