Three people were wounded, one of them critically, when someone in a passing vehicle opened fire on a group standing outside in Chicago's East Garfield Park neighbourhood on Saturday afternoon, Chicago police said, according to ABC7 Chicago.

Source: ABC7 Chicago, reporting Chicago Police Department

The shooting happened at about 2:50 p.m. on the 3000 block of West Flournoy Street, on the city's West Side. The victims — a 40-year-old woman, a 41-year-old man and a 46-year-old man — were standing outside when an unknown vehicle approached and someone inside fired toward them, police said.

Source: Chicago Focal, reporting Chicago Police Department

All three were taken to local hospitals. The woman was shot in the leg and the 46-year-old man was shot in the buttocks; both were listed in fair condition. The 41-year-old man was shot in the neck and was critically injured, according to police accounts reported by CBS Chicago.

Source: CBS Chicago, reporting Chicago Police Department

Police did not immediately identify a shooter or a motive, and no arrest was reported. The investigation is ongoing, police said.

East Garfield Park is a residential neighbourhood on Chicago's West Side. Police have not said whether they believe the three victims were the intended targets.