Federal authorities say a Bronx man bit off part of an immigration officer's finger during a recent arrest.

Court papers released Thursday show Cristopher Santos Felix was charged with assaulting a U.S. Immigration and Customs Enforcement agent.

A criminal complaint says agents went to Santos Felix's home March 3 believing he had stayed in the country "longer than his legal authorization permitted."

The document says officers arrested Santos Felix but removed the handcuffs to allow him to put on a piece of clothing.

Authorities said he became combative and ran into a bedroom before biting an ICE agent who attempted to restrain him.

The agent was taken to a hospital for treatment.

An email seeking comment was sent to the defendant's lawyer.