Four people were hospitalized after overdosing in a River North nightclub.
Paramedics responded to a call of multiple overdoses at Y Bar, 224 W. Ontario St., about 2:50 a.m., according to the Chicago Fire Department.
Two men were taken in serious-to-critical condition to Rush University Medical Center, fire officials said. A woman and a man were transported in serious-to-critical condition to Northwestern Memorial Hospital.
Fire officials initially said the incident had happened at Sound-Bar.
No other details were immediately available.