Carbon Dioxide Leak at Aston Chemical Plant

Hazmat crews responded to a carbon dioxide leak at a chemical plant in Aston Sunday night.

The leak closed Pennell Road between Somerset Lane and Concord Avenue for a couple of hours.  The road was reopened around 10 p.m.

Emergency crews arrived at a dance studio connected to the plant after several people reported a foul odor.

The studio was evacuated and several people were treated for breathing problems.

The plant was closed. Officials are investigating the cause of the leak.