Protesters engaged in a tense standoff with federal authorities at one of the farms during the operation in Camarillo, California.

Authorities executed criminal search warrants in Carpinteria and Camarillo, California, on Thursday, the Department of Homeland Security said.

A California farmworker died on Friday from injuries sustained a day earlier when U.S. immigration agents raided a cannabis operation and arrested hundreds of workers, according to a farmworker advocacy group.