A man is in hospital fighting for his life and a woman is in a serious condition after an explosion at a Sydney home ... also known as laughing gas, was the cause of the explosion.

Two people suffered burns in an explosion in a home in Sydney’s south on Tuesday morning ... including whether it was a gas, what type, and how it was ignited,” the Fire Rescue spokesman ...

A woman was also badly burned in the incident at Hurstville, in Sydney’s south, on Tuesday morning. Emergency services treat a man at the scene of an explosion at a home in Hurstville.

“Firefighters found there was damage to the property from an explosion but there was no sustained ... incident occurred in Hurstville, a south Sydney suburb. Picture: NewsWire / Monique Harmer ...