Police said a 17-year-old girl was shot while standing outside in the Garfield Park neighborhood's 3800-block of West Maypole Avenue around 1:25 a.m.
The girl, shot in the chest, was taken to Stroger Hospital in critical condition.
Minutes later, around 1:34 a.m., at least six people were hit by gunfire while standing outside in the same block, police said.
Two 17-year-old boys were transported to Mount Sinai Hospital in good condition. One was shot in the leg, and the other was shot in the neck.
An 18-year-old woman, shot in the buttocks and arm, was taken to Stroger Hospital in good condition.
An 18-year-old man, shot in the leg, was taken to Mount Sinai Hospital in good condition.
A 19-year-old man, shot in the foot, was taken to Stroger Hospital in good condition.
A 20-year-old man, shot in the body multiple times, was transported to Mount Sinai Hospital in good condition.
At about 1:48 a.m., a man was found shot to death just over 1 mile away, in the West Garfield Park neighborhood's 4300-block of West Van Buren Street.
Police did not immediately say whether the three incidents are connected.
Area Four detectives are investigating. Police did not immediately provide further information.