Police in Huntington Park arrested a man this week who they said tried to impersonate a federal immigration agent.

The Tuesday arrest comes amid heightened fears over immigration enforcement sweeps by masked agents across Southern California.

Police arrested Fernando Diaz, 23, of Los Angeles after they found him in possession of an unlicensed handgun, three handheld radios mounted on the center console of his car, and a list of radio codes for U.S. Customs and Border Protection, according to city officials.