MARC train commuters have dealt with cancelled trains and delays this week as the rail service faced equipment problems caused by subfreezing temperatures.

Problems began on Tuesday morning, on the Penn Line, when at least one early morning southbound train encountered mechanical issues and stopped at BWI airport rail station. MARC then cancelled a northbound train, and another southbound train was cancelled due to a lack of equipment. This led to delays of at least 25 minutes on trains throughout the morning.

On Wednesday morning, MARC cancelled the 6:45 a.m. departure from Baltimore and the 7:20 a.m. departure from Washington. Additionally, one express train from Perryville to Washington operated with a 15-20 minute delay. At one point Wednesday morning, MARC allowed passengers to board a southbound Amtrak train stopping at BWI airport and New Carrollton.

MARC also reported significant delays on the Brunswick line. Metro said it will honor MARC tickets.

“MARC Train management is fully engaged with our car and locomotive maintenance contractors to keep service operating in light of the extreme weather conditions the area is currently facing,” MARC officials said in an email message to riders.

MARC said it would update passengers on any additional planned cancellations by 2 p.m. Wednesday.