Chicago police said the boy fell just after 11 p.m. in the 1200-block of South Kildare Avenue.
[Ads /]
He broke his right ankle, and Chicago fire crews took him to Stroger Hospital in good condition, according to CPD.
RELATED: Residents cite safety concerns after 1-year-old falls from 3rd-story window in Englewood
No one was in custody as of early Thursday.
[Ads /]
CPD said the incident is still being investigated by Area Four detectives.
A 1-year-old boy was critically injured after falling out of a third-story window in the Englewood neighborhood earlier this month, authorities said.