The MTA website lists MARC as currently experiencing minor disruptions.

Here’s a list of emails sent by MTA this evening showing how ‘minor’ things are:

5:42 PM
Penn: Marc 534 stopped south of New Carrollton with a mechanical problem. Approx 15 mins late att.

5:47 PM
Penn: Marc 534 on the move north, now approaching New Carrollton approx 17 mins late.

5:54 PM
Penn: Marc 436 is operating approx 10 minutes late in the New Carrollton area due to following delayed Marc 534.

6:26 PM
Penn: Marc 534 stopped at Halethorpe with a mechanical problem, passengers off-loading at this station. Train approx 35 mins late.

6:29 PM
Penn: Marc 436 will be loading some passengers from disabled marc 534 at Halethorpe. Remaining passengers to be picked up by Marc 538.

6:46 PM
Penn: Marc 436 arrives at Halethorpe (646p) to begin passeenger transfer from disabled Marc 534.

6:55 PM
Penn: Marc 436 departing Halethorpe Stn operating 35-40 mins late, next stn West Baltimore.

7:03 PM
Penn: Marc 538 stopped at Halethorpe (701p) to transfer remaining passengers off the disabled Marc 534.

7:08 PM
Penn: Marc 538 departed Halethorpe approx 17 mins late with remaining passengers off the disabled Marc 534.

7:32 PM
Penn: Marc 538 will be departing Baltimore’s Penn Station approx 30-35 mins late due to extra loading time in terminal to accomodate passengers from the terminated Marc 534.

7:35 PM
Penn: Marc 534 passengers will arrive at their final stops north of Baltimore approx 80 minutes late onboard Marc 538.