The details of the incident are currently unknown.

#BREAKING: Chicago Police officer in critical condition after being shot at "shooter incident" at the Mercy Hospital

- NBC Chicago (@nbcchicago) November 19, 2018

It is noted that one of the police officers was injured, his condition is assessed as critical.

At the site of emergency work law enforcement officers and emergency services.

Earlier it was reported that in the central part of the American city of Houston as a result of shooting near a school a teenager was killed.