Assault charges have been filed against a northern New Jersey man who was found naked in a woman's bathtub after he refused to leave her apartment.

The Jersey Journal reports that Bayonne police responded to the apartment Thursday night and learned 20-year-old Alvaro Grajales of Jersey City had locked himself inside the bathroom.

Grajales allegedly threatened to kill anyone who came through the door, but officers pushed their way in and found him naked in the tub. Grajales allegedly began spitting at the officers, but was arrested after a brief struggle.

Grajales faces two counts of aggravated assault with bodily fluids. One officer suffered a laceration to his right forearm and was treated at a hospital.

A phone number for Grajales couldn't be found Saturday.