Officer-involved shooting prompts lockdown of St. Paul's Elementary School in SF's Noe Valley

August 27, 2012 8:11:48 AM PDT
San Francisco police are on the scene of a possible shooting involving an officer at Church and 29th Streets that involved a robbery and a chase.

Police are searching for someone.

An officer is being treated for what appears to be some sort of leg injury and has been taken to the hospital.