( CNN ) -- A shooting at an LA Fitness gym outside Pittsburgh , Pennsylvania , killed at least four people and wounded several others , a local official told CNN . Authorities at the scene of a shooting at an LA Fitness gym near Pittsburgh , Pennsylvania . The shooter , whose identity was not immediately released , was among the fatalities , said Gary Vituccio , manager of Collier township . At least 10 shooting victims arrived at the three major hospitals in the area . A spokeswoman for Mercy Hospital confirmed five female shooting victims arrived at the facility with multiple gunshot wounds . Three were in serious condition , and two were listed as critical , she said . Allegheny General Hospital received two wounded patients at its trauma center , a spokesman said . Both of victims are women and were listed in fair condition , he said . A St. Clair Hospital spokesman said three shooting victims arrived there Tuesday night ; two were in stable condition and one patient , who was shot in the chest , died at about 8:55 p.m . It was n't clear whether the death at St. Clair was included in the fatalities confirmed by Vituccio . Perry Calabro of nearby Bridgeville told CNN he was between racquetball games at the gym when he heard screaming and multiple gunshots . He said he ran out and did n't see the gunman or others . Other witnesses told CNN affiliate WTAE that the lights went out before they saw flashes in dark -- what they later realized was gunfire . Witnesses told WTAE that a man unrecognized by the gym 's staff shot people in a Latin dance class . A witness identified as Nicole told WTAE that about 30 women were in the class when `` a middle-aged white male walked into the class . He had a big gym bag . '' `` He looked out of place in a class full of women , '' according to the witness , who told WTAE the man put down the bag , turned off the lights and opened fire .
Shooting at LA Fitness gym gym leaves At least 10 others hurt . Shooter reportedly among those who are dead . Witness says shooter targeted Latin dance class . Gym is in Pennsylvania , Collier Township .