CHICAGO (CBS) — A 3-year-old boy was among 19 people shot, one fatally, in separate incidents across Chicago since Friday evening.

The boy was shot and seriously wounded about 12:30 a.m. Sunday while traveling in the back seat of a car in the Washington Park neighborhood on the South Side.

The westbound car stopped at a stop sign in the first block of East 60th Street when another vehicle pulled up on the passenger side and someone inside fired shots, according to Chicago Police. The car’s driver sped away from the shooting before realizing his only passenger, the 3-year-old boy, was shot in the back.

The driver took the boy to Holy Cross Hospital, where the white Pontiac Grand Am could be seen with at least four bullet holes, surrounded by crime scene tape at the emergency entrance. The boy “suffered what appears to be a graze wound” and was transferred in “serious-but-stable” condition to Comer Children’s Hospital, police said.

About 10 p.m. Saturday, 21-year-old Nadia Manjarrez was killed when a gun accidentally discharged inside a Portage Park neighborhood home on the Northwest Side, according to police and the Cook County medical examiner’s office. She and a 37-year-old man were inside the home in the 4800 block of West Hutchinson when the gun went off.

Manjarrez, who lived in the neighborhood, was shot in the head and taken to Illinois Masonic Medical Center, where she was pronounced dead at 10:50 p.m., authorities said. The man was detained for questioning, and the gun was recovered while Area North detectives were investigating the shooting.

The weekend’s most recent shooting happened about 3 p.m. Sunday when two people were wounded in the Far South Side West Pullman neighborhood. The pair was shot about at 118th and Emerald, according to police. An 18-year-old man was shot in the right buttocks. He was taken to Christ Medical Center in Oak Lawn, where his condition stabilized. A second person was shot in the body and also taken to Christ. Their age and gender weren’t immediately known.

At least 16 other people were wounded in separate Chicago shootings between 4:30 p.m. Friday and 3 p.m. Sunday.

Last weekend, two men were killed and 26 others were wounded in citywide shootings.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2017. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)