President Donald Trump has granted federal immigration agents "total authorization" to defend themselves following clashes with protesters during a recent enforcement operation at a cannabis farm in California.

Federal immigration agents seeking to detain a Honduran landscaper chased him into a Southern California surgical center and quickly found themselves in a tense standoff as clinic staff demanded to see identification and a warrant.

California surgical center staff confronted ICE agents attempting to arrest a Honduran landscaper, with video showing employees blocking officers.