An accident involving two Metro employees shut down the south end of the Yellow Line around 9:30 this morning. According to Metro, a four-car train heading into the Alexandria railyard hit two track workers between Huntington and Eisenhower Ave. There were no passengers aboard the train, and the two workers have been taken to area hospitals.

The King Street, Huntington, and Eisenhower Ave stations will be closed while the accident is investigated. Yellow Line trains are terminating at Braddock Road, and a free shuttle is serving King Street, Eisenhower, and Huntington.

Metro has not said when they expect the stations to reopen, but if you are a Yellow Line rider, check back here for an afternoon update before you head home.

UPDATE: As noted in the comments, one of the Metro employees was killed as a result of the accident, and the other is critically injured. The Post has more on the story.

UPDATE: The employee who died was a 29-year veteran and was doing a routine track inspection at the time of his death. The other victim has been a Metro employee since April 2006, and is listed in critical condition. The train operator, a Metro employee since 1999, was taken for routine drug and alcohol testing.

This is the second employee fatality this year. On May 19, an automatic train control technician was hit and killed by a Red Line train at the Dupont Circle Metrorail station. Fourteen Metro employees have died on the job in the agency’s 30-year history.

UPDATE: Service on the Yellow Line has resumed as of 3:10 PM.