Susquehanna Township, PA – WGAL-TV – Thirteen people were taken to a hospital Monday night after a carbon monoxide incident at Twin Ponds East Skating Rink in Susquehanna Township, Dauphin County.

Rescue crews said a broken zamboni filled the rink with carbon monoxide.

The leak was discovered after the rink’s general manager was found unconscious in the parking lot.

Everyone is expected to make a full recovery.