U.S. Immigrations and Customs Enforcement officers arrested at least one person in Berkeley this morning in furtherance of an ongoing criminal investigation, authorities said.
However, ICE agents didn't make any civil arrests, a federal official said, commenting on background.
The activist group By Any Means Necessary (BAMN) said in a news release, however, that three people were arrested just south of downtown Berkeley today.
"ICE officers in plain clothes and wearing tactical vests entered a home and arrested three people," BAMN said.
The group held a protest in front of Berkeley's Old City Hall.
Berkeley police and Berkeley Mayor Jesse Arreguin weren't immediately available for comment on the ICE operation.