A 45-year-old woman and a 3-year-old girl were both shot in the head and killed in West Philadelphia's Wynnefield Heights neighborhood on Sunday, police said. 

The shooting happened on the 3900 block of Lankenau Avenue just after 6 p.m., according to police. 

Philadelphia Police Department Inspector Michael Gormley said the 45-year-old woman and the 3-year-old were each shot once in the head. The 45-year-old woman was pronounced dead at the scene, while the 3-year-old was pronounced dead at Children's Hospital of Philadelphia.

Gormley said officers recovered a weapon at the scene, but a motive remains unclear. He added that there were only two shots fired during the shooting.

The shooting is under investigation.

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• Shooting
• West Philadelphia
• Philadelphia