Mount Sinai Hospital was placed on lockdown Monday afternoon, the hospital confirmed.
Details on what prompted the lockdown weren't immediately known.
Chicago police confirmed they were called to the hospital for assistance with an incident involving a patient's family members.
The lockdown was lifted just before 2:30 p.m., police said.
Over the weekend, two women were wounded in a shooting just outside the hospital in Chicago's Douglas Park neighborhood.
The women, both 35-years-old, were shot when someone in a dark colored car fired shots about 8 p.m. Saturday in the 2700 block of West Ogden, Chicago Police said.
Both women were shot in the lower body and took themselves to Mount Sinai Hospital. Their conditions weren't immediately known, police said.
Check back for more on this developing story.