Published: Aug 04, 2012 1:45 AM EDT
Updated: Aug 04, 2012 6:30 AM EDT

OAKLAND, Calif. (AP) - Police say protesters marching through downtown Oakland smashed a window at President Barack Obama's campaign office.

Officials say the window at Obama's office at 16th Street and Telegraph Avenue was broken as more than 100 protesters marched around 9 p.m. Friday.

Police say the marchers also smashed several car windows.