At least six nine protesters at UC Berkeley have climbed to the top of Wheeler Hall and chained themselves to an antenna and others are walking freely on a high ledge. University officials have canceled classes in the building, according to various Twitter messages.

“This is a serious safely issue,” university spokesman Dan Mogulof told KTVU.com.

The protesters demand, according to a Daily Cal tweet: retract 32% fee increases, more democratic UC leadership, drop student conduct charges, end Operational Excellence.

UPDATE: 7:25 pm. At least two television news helicopters are still hovering over the UC Berkeley campus trying to capture footage of the protesters on top of Wheeler. One protester was taken into custody when he tried to crawl back through a window. Police have set up barricades in front of Wheeler Hall, where a few hundred others have gathered to cheer on those on the ledge.

UPDATE: 6:30 am. The drama ended around 9:25 pm Thursday night when all the protesters came down from the ledge. They were cited for trespassing and released. They agreed to come down after university officials said they would drop some charges against some students involved in earlier protests, according to the Chronicle.

Twitter photo by Natalie Santiago

Frances Dinkelspiel, Berkeleyside and CItyside co-founder, is a journalist and author. Her first book, Towers of Gold: How One Jewish Immigrant Named Isaias Hellman...