Law enforcement officials work near Mercy Hospital in Chicago after a gunman opened fire. (Zbigniew Bzdak/Chicago Tribune via AP)
Chicago police have secured a hospital following a shooting that left the suspected gunman dead. An officer who was critically injured, along with four others, also succumbed to his injuries later.
Mercy Hospital & Medical Center released a statement saying police officers have secured the facility and that patients are now safe.
Witnesses say a gunman repeatedly shot a woman near a parking lot outside the building before entering the hospital and opening fire on Monday afternoon .
Police say at least one hospital employee are among the people critically wounded in the attack. Police say those patients are being treated at other hospitals.
Police say the suspected gunman is dead, but it's unclear if he took his own life or was killed by police.
Police haven't released details about the suspected gunman, the victims or a possible motive.
