Burlington’s Fire Department spent Sunday afternoon at the Arena at the Mainway Rec Centre for two calls not related to each other.
The first call was about an injured athlete and the second was about a carbon monoxide detector.
The arena was cleared, including the injured athlete, when the detector went off and the HazMat team responded and ventilated the building.
The source was a faulty Zamboni, which has been taken out of service.
The athlete had minor injuries.