MARC passengers can expect delays on the Brunswick Line after a train struck a pedestrian near the Gaithersburg station.

Trains aren’t continuing beyond MARC’s Rockville station, and significant delays are expected. It wasn’t known when normal service would resume.

Trains 873 and 891 were expected to depart on time, but not travel beyond the Rockville station until tracks are reopened, according to a MARC advisory.

Montgomery County Police said the pedestrian was killed, and authorities are investigating.