2 pedestrians struck by tour bus in downtown DC

Two pedestrians were struck by a tour bus in Northwest D.C. Wednesday night, fire officials say.

The collision happened on Pennsylvania Avenue and 7th Street outside of the Archives-Navy Memorial-Penn Quarter Metro station at around 9:42 p.m., according to D.C. Fire and EMS spokesperson Vito Maggiolo.

The victims are believed to have critical, life-threatening injuries, officials say.

This is a developing story. Stay with us for updates.