A U.S. citizen and Army veteran who works as a security guard at a California cannabis farm said on Wednesday that U.S. officials arrested him during an immigration raid last week and held him for three days without explanation.

George Retes said he was arriving to work when several agents surrounded his car on July 10. Despite identifying himself, he said the agents broke his window, pepper sprayed him, and dragged him out.

Federal authorities now say they arrested more than 360 people at two Southern California marijuana farms last week, characterizing the raids as one of the largest operations since President Donald Trump took office in January.