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ARLINGTON -- Police say a man and a woman were fatally shot in an apparent domestic disturbance early Monday morning.

Police arrived at a home in the 6800 block of Biondi Trail at 5:15 a.m. where they discovered a man and a woman with gunshot wounds. Both were transported to Methodist Mansfield Medical Center, where the woman was pronounced dead. The man also died from his injuries later Monday afternoon.

Arlington police media relations coordinator Tiara Ellie Richard said homicide detectives are investigating what led to the shooting between the two, who had been in a relationship for many years. The woman's teenage son and adult daughter were both in the home at the time of the incident, but believed to be sleeping.

The identities of the victims have not been released.

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