Police say a man shot his 13-year-old sister while she slept and then turned the gun on his mother at a housing project in Harlem early Tuesday.

The suspect, 28-year-old Steven Murray, was shot by police during a confrontation outside the building. According to a source familiar with the investigation, he first fired on officers, who shot back, firing 84 shots.

The suspect was hit in the legs and torso and was taken to the hospital in critical condition.

No officers were injured in the exchange.

Police say they responded to the Polo Grounds Houses on Eighth Avenue just before 3:30 a.m. after receiving a call of a female shot. They found the 13-year-old victim, Annie Fryar, face-down in her bed, under the covers, the source told NBC New York.

The girl's 44-year-old mother, Christine Fryar, was shot in the neck and hand and was taken to Harlem Hospital. She is listed in critical condition.

The mother told police the suspect was her son who had recently moved to the area from North Carolina. The previous night, she had told him he couldn't stay with her anymore, which is what police believe led to the shooting, the source told NBC New York.

His weapon was recovered at the scene where he was shot.          

The investigation is ongoing.

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