Metro says a train derailment occurred at around 4:45 p.m. on an inbound Green Line train approaching the West Hyattsville Station.
Metro spokesperson Dan Stessel says at least three cars derailed at about 1,000 feet from the station.
All 55 passengers were evacuated from the train by 5:40 p.m.
Metro says there are no injuries reported. A pregnant woman in her 20s was transported to a local hospital to be checked on.
According to Prince George's County Fire Department spokesperson Mark Brady, the passengers were removed from the train through a fan shaft exit on 29th Ave and Ager Rd.
Green Line service is suspended between Fort Totten and Prince George's Plaza. Metro expects for this section to be closed for the rest of the day and possibly throughout the weekend as crews make track repairs. Normal service is expected for Monday morning's commute.
Shuttle bus service will be provided between those stations as well as the West Hyattsville station. Metro expects significant delays in both directions on the Green Line.
Metro says they have now imposed a 35 mph speed restriction on trains operating in all above-ground territory. As a result, Metrorail customers will experience delays on all lines.
Stessel says there were no speed restrictions in effect before the train derailment.
All previously announced weekend track work has been canceled for the weekend of July 6-8, 2012.
Green Line Metro train derails near West Hyattsville stationMore>>