CHICAGO — A 24-year-old woman is in critical condition after gunfire erupted in Chicago’s Ravenswood neighborhood, city police said Wednesday.

Several evidence markers lay in an alleyway just behind the 2400 block of W. Eastwood, just off Western Avenue. Around 2:45 p.m., police say a woman was in the backyard of a residence when someone shot her in the chest. Someone rushed the woman to a nearby hospital in critical condition.

Locals suspect the wounded woman was an unintended target.

“Either she was in the car or out the car, we’re not sure, but then her friend drove her to the hospital,” said a bystander who did not wish to be identified by WGN News.

SkyCam 9 flew over the scene and captured what appeared to be a black sedan riddled with bullets. Gunfire also pierced a garage in the area.

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It is unclear what, if anything, preceded the shots fired. The shooters allegedly fired more than 40 rounds.

Witnesses say an argument among three people may have led to the gunfire.

“We heard the gunshots. We weren’t sure what it was at first. It sounded like something was falling from the building,” the female bystander said. “It rattled the building that much, like it shook the building.

Citizens in the area called Wednesday’s incident a shootout.

“One neighbor did say she saw someone have a long gun, some kind of semi-automatic,” the woman said. “There were two persons shooting at each other and vice versa.”

Neighbors told WGN News that many young people live at the residence in question and the house may be split into several different units. 

No one is in custody. Anyone with information can leave an anonymous tip at cpdtip.com.