Six student protesters are chained together on the ledge of a building on the University of California at Berkeley campus, a UC Berkeley spokesman said.
The protesters are chained to an antenna on the fourth floor of Wheeler Hall to protest budget cuts to public education, said Callie Maidhof, a second-year Ph.D. student at UC Berkeley.
Two or three other protesters are also on the ledge moving about freely, UC Berkeley spokesman Dan Mogulof said.
"This is a serious safety issue," Mogulof said.
University police are at the scene, he said.
The students are also using a bullhorn to criticize the arrest of 17 other protesters at UC Berkeley last night.
Maidhof said 14 of the protesters have been released and threewere scheduled for a court appearance at 2 p.m. today.