SAN FRANCISCO (AP) — A San Francisco Bay Area school district that fired a high school security officer last month after surveillance video showed him attacking a handcuffed student in a wheelchair has released a second video showing more details of the May 19 incident.

The two-minute video released Tuesday by Oakland Unified School District spokesman Troy Flint appears to show two guards pushing 17-year-old Francisco Martinez out of his wheelchair before one guard kicks Martinez in the head and drags him into an elevator.