A fight between a couple in Hallandale Beach turned deadly overnight.

A woman in one of the condominium units of Park Layne Towers, 400 Golden Isles Drive, called 911 and told an emergency operator that she had been shot. She then knocked on a neighbor’s door for help. When paramedics arrived, they found an unconscious woman lying on the ground with a gunshot wound in her shoulder. She was rushed to a hospital where she died.

Meanwhile the woman’s boyfriend, who police suspect shot her, barricaded himself in the couple’s condo.

“Police department members then attempted to make contact with the resident of apartment 57 who were advised to go away,” said Hallandale Beach Police Chief Dwayne Flournoy. “The Hallandale Beach SWAT team and a negotiator [were] called to the scene and attempted to make contact. They couldn't make contact.”

The standoff between the man and SWAT team lasted five hours. At one point, police fired tear gas canisters into the unit to force the man out. After hearing shots from inside the apartment, police entered the home and found the man dead.

Police have not released the couple’s names.

This story was reported by CBS4.