UPDATED, 2:55 p.m.: An adult male suffered life-threatening injuries after being struck by a non-revenue train at the Shady Grove Rail Yard in Gaithersburg shortly before 1 p.m. Tuesday, according to Montgomery County Fire and Rescue spokesman Capt. Oscar Garcia.
Follow Gaithersburg Patch on Twitter for updates as they become available.
WMATA spokesman Philip Stewart confirmed the victim was a Metro employee.
The victim was walking in the yard and stepped in front of a train when he was trapped underneath after being struck, and is being taken to a trauma center, said MCFR Asst. Chief Scott Graham.
Graham said the shock trauma GO-TEAM from Baltimore's R Adams Cowley Shock Trauma Center was called in to assist.
The rail yard, in the 15900 block of Somerville Drive, is a maintenance center for out-of-service Red Line trains, Stewart said. He said Red Line Metro service is not affected by the incident.
The victim has more than 25 years of service for Metro, according to a statement. Metro is conducting a "safety stand-down" at the Shady Grove yard where employees receive counseling and review safety practices.