Oakland 20 hours ago Police activity forced lockdown at Oakland Arena Attendees at a Hanz Zimmer concert on Thursday were forced into a lockdown at the Oakland Arena due to police activity. Pete Suratos has the details. US & World Videos 2:56 Cal prepares for ESPN's “College GameDay” 2:51 New campaign aimed to bring people to Oakland 0:53 De La Salle High football heads to London for NFL Academy game 0:41 Cal gets ready to host College GameDay for the first time 1:07 Bomb threat at Oakland Arena forces lockdown
