Helmeted police in riot gear turned out on Friday evening in a tense confrontation with protesters in downtown Los Angeles, after a day of federal immigration raids in which dozens of people across the city were reported to be taken into custody.

Federal Immigration and Customs Enforcement agents used riot gear as they clashed with protestors during a series of raids in Los Angeles where they ended up detaining more than 40 people.

Surprise U.S. Immigration and Customs Enforcement sweeps in downtown Los Angeles on Friday prompted fierce pushback from elected officials and protesters.