UPDATE: Five people were hospitalized with non-life-threatening injuries, according to the San Francisco Police Department. The investigation is ongoing.
Four people were sent to the hospital after two AC Transit buses crashed in SoMa Wednesday morning, San Francisco police say.
The crash was reported around 9:30 a.m. near Fremont and Folsom streets. One bus collided with several vehicles on Fremont Street before going onto the sidewalk and hitting the scaffolding of one building.
In response to the crash, the California Highway Patrol closed the westbound Interstate 80 off-ramp that exits to Fremont and Folsom streets. It is expected to be closed for several hours as officials investigate the scene.