Amtrak trains resumed service Friday after a “trespasser incident" caused a service suspension for more than an hour.

       At about 1:55 p.m., the passenger rail service tweeted that travel between Baltimore and New Carrolton was “temporarily stopped.” Amtrak trains were holding in Baltimore, Washington or New Carrollton.

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       At least three trains on MARC’s Penn Line also were canceled while others were delayed, according to the Maryland Department of Transportation. Penn Line service was suspended between the Odenton and Bowie stations because of police activity, according to MARC.

       Amtrak spokeswoman Kimberly Woods said in a statement that tracks were “partially reopened” at 3:10 p.m. and that Amtrak officials are working with local authorities to investigate the incident.

       SERVICE ALERT: Due to a trespasser incident, all rail travel between Baltimore (BAL) and New Carrolton (NCR) is temporarily stopped. We will provide an update as more information becomes available.

       — Amtrak Northeast (@AmtrakNECAlerts) May 13, 2022

       This story will be updated.