A woman has died and a gunman is reportedly still at large at the University of Illinois at Chicago Medical Center. The identities of the alleged shooter and the victim have not been released.
The shooting happened just before midnight local time and the shooter is said to be still in the building somewhere. Students have been warned and the building is reportedly on lockdown.
The circumstances of the shooting – such as whether the shooter knew the victim – are not clear. Police have formed a perimeter around the scene to try to stop the gunman getting away.