"It definitely wasn't a car back-firing," one witness said.
"After the shot, I heard a baby crying, and lots of people yelling and screaming, including a woman who I heard say 'look what you have done'," another person, a man, said.
The residents said the next thing they heard was a car driving off at speed and shortly after sirens as the police arrived.
Another man in the street said there had been an altercation at the property and a woman had been injured, but he declined to comment further.