Metro trains collide near D.C., killing at least 4

WASHINGTON — The mayor of Washington, D.C., says four people are dead after a collision between two transit trains. Mayor Adrian Fenty says that would make it the deadliest accident in the history of the Metro train system. According to an emergency rescue official, two other people have life-threatening injuries, and 70 people in all were hurt.

The collision took place at around 5 p.m., EDT, near the border between Washington and its Maryland suburbs.