Four people including two boys have been wounded in a drive-by shooting in Philadelphia.

The shooting happened late Tuesday night.

Police say the victims include two 13-year-old boys, who were both shot in the leg. They're hospitalized in stable condition. Police say a 52-year-old man was shot in the back and is also hospitalized in stable condition. A 22-year-old man was shot multiple times in the back and legs and is listed in critical condition.

There's no immediate word on a motive for the shooting. No arrests have been made.

Police continue to investigate.