A gas plant fire near Calgary, Alberta, has left one person in critical condition. Two individuals were injured in the incident, which occurred in southern Alberta. Emergency responders were called to the scene, approximately 88 kilometers east of Calgary. A man in his 70s was transported by air ambulance to a hospital. He was listed in critical condition. The fire prompted a response from local fire services. The cause of the fire is under investigation. No other casualties have been reported. The area remains under observation as authorities assess the situation.