Shootings at two separate street parties in the US have left one person dead and 16 injured.

A gunman opened fire on a neighbourhood celebration in Philadelphia, wounding seven including a toddler and two children.

Police say a bullet grazed an 18-month-old girl on the side of her neck.

Meanwhile, one person was killed and nine were injured at a party on a basketball court in Detroit.

Journalist Priya Mann says there were a lot of families and young children present when shots rang out: