Chicago's most violent weekend this year began Friday evening when a 5-year-old boy was shot in the leg while sitting in a car as adults around him argued.

It peaked early Sunday morning when 17 people were shot in two hours in a two-mile area on the West Side, accounting for about a third of those shot over the weekend. Three women and four men were wounded in Douglas Park by someone in a passing black Camaro; two women were shot an hour later on the other side of the park; eight people were hit about an hour later, blocks away, including a man who died. More than half the victims from the shootings were hit in the arm or leg.

By Monday morning, 55 people had been shot across the city, seven of them fatally. The victims ranged from 5 to 56 years old, and the shootings stretched from Rogers Park on the North Side to West Pullman on the Far South Side. Nearly all the gun violence happened on the West and South sides, the Chicago Tribune reports.