A fellow in a suit got shoved and shouted at by some APEC protesters and then apparently cold-cocked one of them, while a nearby China-related protest has police busy preventing fights among demonstrators.

Muni buses headed downtown were being turned back at Sixth Street and traffic was generally becoming extremely clogged Wednesday morning due to protesters attempting to disrupt the beginning of the APEC CEO summit and the leaders' summit.

Thousands demonstrated in downtown San Francisco Sunday, calling for worker rights, an end to free-trade capitalism, an end to Israel's attacks in Gaza, an end to human rights abuses in China and the Philippines, and many other things, with a march that attempted to get close to the Moscone Center.