Watch CBS News
The boys, 13, 16, and 17 years of age, were charged with multiple felonies, including one count of aggravated vehicular hijacking with a weapon and three counts of armed robbery with a firearm.
Police said three female minors were at the playground at Jones Park. A short time later, the suspect approached one of the girls and grabbed her as she crawled on playground equipment.
A man arrested for impersonating a police officer during an anti-ICE protest in Chicago had a loaded semi-automatic weapon, badges and fake documents, police sources said.
The attacks happened within 5 minutes of each other on the 0-100 block of West Kinzie Street.
Officers also found three other children, ages 8, 11, and 13, inside the residence unsupervised.
It happened around 2:30 a.m. in the 7400 block of South Wabash Avenue in the Greater Grand Crossing neighborhood.
The vehicle was described as having tinted windows and possible damage to the front driver's side and windshield.
The dolphin was born last Saturday morning to mother Allie, 38, who gave birth to the calf just before 12:30 a.m.
This follows the four previously reported robberies that happened since June 5.
It's unclear what led up to the fight or how many people were involved.
Chicago police said the victim, a 38-year-old man, told officers that he was walking westbound when a red sedan pulled up and someone from inside shot at him with a paintball gun.
A 3-year-old boy, also from Maple Park, was onboard the plane.
Carlos Sanchez-Roa, 28, had his hearing rescheduled after he was unable to appear in court last Monday.
Chicago police said two men, 51 and 69, were leaving a business when three unknown people got out of a dark sedan, pulled out guns, and opened fire.
This year's theme was the pygmy hippopotamus, inspired by Annie and Pogo at the zoo.