The story

A rush-hour collision Monday between two Metro trains north of downtown Washington, D.C., killed at least six people and injured scores, Mayor Adrian Fenty said.

He called it the deadliest crash in the history of the Washington Metropolitan Area Transit Authority, known as Metro. One of the dead was the female operator of one of the trains, Metro officials said.

"The scene is as horrific as you can imagine," Fenty said in a news conference. "One car was almost squeezed completely together." Read full article »