UPDATE: Chicago fire officials have corrected an earlier report that the overdoses occurred at Sound Bar. The incident occurred at Y Bar, located at 224 West Ontario. We have corrected our story with this new information.
Chicago fire officials say that at least four people were taken to area hospitals after they apparently overdosed at a River North nightclub.
According to authorities, paramedics were called to Y Bar in the 200 block of West Ontario at approximately 2:50 a.m.
In total, three men and one woman were transported to area hospitals in red (serious-to-critical) condition after they apparently overdosed at the location.
There has been no update on the condition of the four individuals, and an investigation remains underway.
Feeling out of the loop? We'll catch you up on the Chicago news you need to know. Sign up for the weekly> Chicago Catch-Up newsletter.