MARC trains running on the Penn Line were delayed Monday morning, Maryland Transit Administration officials said.
One southbound train experienced mechanical problems, along with downed overhead electrical wires, according to the MTA website and spokesman Terry Owens.
MTA officials turned around train 417 at West Baltimore and it departed at 8:10 a.m., Owens said. The first train to leave Penn Station departed at 8:13 a.m., he added.
"Unfortunately this morning, the train stopped at an interlocking, which caused delays both north and southbound," Owens said.
Meanwhile, Amtrak commuters at Penn Station can expect delays of up to 20 minutes in departure times Monday, as the train line works to clear up congestion from a power outage.
The 10-minute outage on two tracks happened after "somehow a train got tangled up in the wires at a switch," said Christina Leeds, an Amtrak spokesperson. Leeds could not say where the incident occurred, but three Amtrak trains were affected.
Power was restored at 8:03 a.m., and "some minor residual delays" were expected, Leeds said.