San Francisco Muni F Street car and FedEx big rig collide

San Francisco Muni F Street car and FedEx truck collide 

A Muni F-line street car and a FedEx semi truck collided on Market Street between 7th and 8th Streets in San Francisco late Friday afternoon. 

San Francisco Police Department's Tenderloin Twitter page posted a photo of the two vehicles pressed against one another. 

SFPD says the collision happened at 3:54 p.m. on the 1100 block of Market St. The cause is not known at this time. 

San Francisco Fire Department says three victims are involved and one of them was treated at the scene. No one suffered life-threatening injuries.

Officials say to avoid the area. At 4:47 p.m. SF Fire tweeted they would have the area cleared momentarily.