Police in southern California arrested a man suspected of posing as a federal immigration officer this week, the latest in a series of such arrests, as masked, plainclothes immigration agents are deployed nationwide to meet the Trump administration’s mass deportation targets.

The arrest is one of several cases involving people allegedly impersonating immigration officials, as the nationwide crackdown on undocumented immigrants intensifies.

Experts have warned that federal agents’ increased practice of masking while carrying out immigration raids and arrests makes it easier for imposters to pose as federal officers.