Fans mob Baltimore streets to celebrate Ravens win

"Most of the crowds are dissipating," Baltimore Police spokesman Anthony Guglielmi (pronounced Goo-YELL-me) said shortly after midnight. Guglielmi said the crowds grew to several thousand before people slowly started to peel off and head home.

The streets in the Golden Gate city also were relatively calm Sunday night, unlike after the San Francisco Giants' World Series victory in late October, when a city bus was set ablaze, cars were overturned and bonfires erupted in trash containers and on the streets. About three dozen people were arrested following that victory.

"Citywide, everything seemed to be pretty good" Sunday night, Officer Carlos Manfredi said. "We did have a couple of flare-ups in the Mission District, but otherwise everyone seemed to be behaving themselves."

Associated Press writer John S. Marshall in San Francisco contributed to this report. Follow Jessica Gresko at http://twitter.com/jessicagresko