One man was critically injured in a shooting at a playground in the East Germantown section of Philadelphia Tuesday evening, police said. 

An 18-year-old man was shot in the chest shortly before 5:45 p.m. at the Lonnie Young Playground on the 1100 block of East Chelten Avenue, police said. He was taken to Albert Einstein Medical Center, where he is in critical condition, police said. 

It's the second shooting at a city recreation center in less than a week. 

Officials say a fight broke out shortly after 5:30 p.m. Tuesday, and at least one person fired shots at a group of teens. 

"Still trying to determine if there were two shooters or if there was one shooter, but based on some preliminary video we have reason to believe there could be two shooters at this location possibly shooting at each other," Philadelphia Police First Deputy John Stanford said. 

Police are questioning several individuals and say the shooting happened as the playground was packed with children.

"From what I'm told we had about 40 kids out here at the time of this incident, so we're very lucky there weren't any kids that were injured," Stanford said.

The incident at the playground happened as city leaders gathered for an emergency meeting on rec center safety following a violent weekend that included a triple shooting at the Finley Recreation Center in West Oak Lane Saturday night. Police have released video of a suspect they are searching for as one of the victims remains in critical condition. 

"We are going to be committed to this process, committed to making sure that we are continuing to make sure this city is safe, and obviously one biggest components of it is making sure our rec centers are safe places for our kids to play and enjoy," Stanford said.