New York City Police Department officers at the scene outside...

New York City Police Department officers at the scene outside 3073 Park Ave. in the Bronx where a uniformed city cop was shot by a suspect in a second-floor apartment. Credit: G.N. Miller / NY Post

A police officer who was hit at least three times in a shootout remains in critical but stable condition.

Officer Robert Salerno was shot Monday while responding to a 911 call in the South Bronx. He was hit twice in the abdomen. His bullet-resistant vest blocked another bullet.

He remained at Lincoln Medical and Mental Health Center on Tuesday.

The shooting occurred around noon at a housing project. A home health care aide called 911 to say her client’s son had a gun and had slapped her.

The son, Santiago Urena, opened fire on police. Officers returned fire, shooting 21 times.

Urena was later found dead inside with a gunshot wound to the head. It was unclear whether it was self-inflicted or from police gunfire.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

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