A Dominican National in the US illegally has been charged with assault for biting off the tip of a veteran ICE officer’s finger, according to newly unsealed court papers and law enforcement sources.

Immigration and Customs Enforcement officers were attempting to take Cristopher Santos Felix into custody on March 3 when he chomped down on the unnamed officer’s left ring finger, a source told The Post.

Santos Felix entered the country in June 2015 on a visitors visa, sources said, and then overstayed it and never left.

The bloody encounter occurred at his Bronx home after officers uncuffed Santos Felix so he could put on an article of clothing, court documents say.

The man then became aggressive and ran into a bedroom — where he bit the finger of the ICE officer who attempted to restrain him.

He’s now facing federal charges for the finger-biting.

Sources said Santos Felix has racked up a criminal history while in the US, including a prior conviction for driving while intoxicated and a Sept. 29, 2018, arrest by local authorities for assault charges.

ICE said it filed to take him into custody following the state assault charge, but instead he was released.

“Communities are safer when law enforcement works together, yet sanctuary city policies continue to hinder the coordination needed to keep dangerous criminals off our streets,” an ICE spokesperson said. “The officer’s injury was the direct, foreseeable and entirely avoidable result of New York’s criminal alien sanctuary policies. Proponents of sanctuary policies claim they make communities safer, but in many cases they are causing more harm than good.”

A lawyer for Santos Felix did not immediately return a message.