AUGUSTA — A city man was arrested Monday afternoon and charged with elevated aggravated assault on a pregnant woman after allegedly assaulting the mother of his unborn child, police said.

Augusta Police Deputy Chief Jared Mills said in a press release that police had responded late Sunday night to a report that a man had displayed a firearm in a reckless manner.

When officers executed a search warrant at his apartment Monday afternoon, Stephon J. Davis, 18, of Littlefield Street, drove off, but was taken into custody after a felony motor vehicle stop on Mt. Vernon Avenue.

“Officials from both the Augusta Police Department and Maine Drug Enforcement Agency executed the search warrant at the Littlefield Street residence where evidence of criminal activity was located,” said Mills. “This was a dangerous situation that removed illegal drugs and a stolen firearm from our city streets.”

Davis was charged with criminal threatening with a weapon, elevated aggravated assault on a pregnant person, trafficking in schedule W drugs and theft by receiving stolen property. He is being held without bail in the Kennebec County jail.

Augusta Police and Maine Drug Enforcement Agency officials collaborated in the arrest, Mills said.