( CNN ) -- Police shot and wounded an armed man at a Milwaukee-area children 's hospital 's neonatal intensive care floor late Thursday morning , authorities said . Milwaukee police had gone to the Children 's Hospital of Wisconsin to arrest the man on a felony warrant and found him holding a child in the intensive care unit , Milwaukee County Sheriff David Clarke told reporters . Instead of surrendering , the man took out a handgun and fled down a hallway , prompting police to shoot him . `` When he was first approached , he put the baby down and he acted as if he was going to go along peacefully , '' Clarke said . `` And it was n't until a couple of seconds later that he bolted . '' Milwaukee Police Chief Edward Flynn said the man continued to struggle with officers even after being shot in the arm . No one else was injured , he said . Clarke said the officers did n't know the suspect 's relationship to the child or whether the man -- who was wanted on a weapons charge -- was armed when they first encountered him . He said the Milwaukee Police Department would investigate its officers ' use of force , but told reporters it was too early to be `` second-guessing '' them for opening fire inside the hospital . `` These things rapidly evolve and you 're going to do in your best judgment what you think is necessary to get these violent indivduals in custody , and it does n't always go according to Hoyle , '' he said , referring to a strict rulebook for games . He added , `` I 'll tell you a better question , though : What 's this idiot doing in a neo-natal care unit with a handgun ? '' The hospital is located in Wauwatosa , a few miles west of Milwaukee . It was locked down because of the incident , but an all-clear was posted by mid-afternoon , the facility posted on Twitter . CNN was first alerted to the incident by Twitter posts from CNN affiliates .
Police wound wanted man in Milwaukee hospital . The man had tried to escape police who tried to arrest him in the neo-natal ICU . `` What 's this idiot doing in a neonatal care unit with a handgun ? '' sheriff asks .