A 78-year-old woman crossing the street Wednesday morning near UCSF Mount Zion medical center was seriously injured after being struck by a vehicle in in San Francisco’s Western Addition neighborhood, authorities said.

San Francisco police received a report of a crash involving a pedestrian around 8:45 a.m. at the intersection of Divisadero and Sutter streets, said Adam Lobsinger, a San Francisco police spokesman. The driver, a 32-year-old man, turned at the intersection and hit the woman as she was crossing the street, police said.

First responders took the woman to a nearby hospital with life-threatening injuries. The driver did not suffer injuries, authorities said.

“That vehicle and driver remained on scene and are cooperating with investigators,” Lobsinger said.

Police did not release the identities of the driver or victim.

The intersection of Divisadero and Sutter streets was closed as officials investigated the incident.

San Francisco Chronicle staff writer Ashley McBride contributed to this story.

Gwendolyn Wu is a San Francisco Chronicle staff writer. Email: gwendolyn.wu@sfchronicle.com Twitter: @gwendolynawu