India, Feb. 22 -- A middle-aged couple and their 26-year-old son suffered serious burns after a fire broke out in their house in south Delhi's Madanpur Khadar JJ Colony allegedly caused by a cooking gas cylinder blast on Saturday, police said.

Officials said the Delhi Fire Services (DFS) received a call reporting the fire on the ground floor of a four-storey residential building at 4:46 am on Saturday. Three fire tenders were dispatched to the spot, and the fire was brought under control in about an hour, they said.

"Three members of the family were rescued from the ground floor. They had severe burns and were identified as Jagdish, 52; his wife Laxmi, 48; and their son Jyotish, 26. Jagdish had nearly 80% burns while his wife had nearly...