A big fire broke out at the Maha Kumbh Mela on Sunday due to a cylinder blast, engulfing 18 tents in Sector 19, officials said. There was no immediate news of any casualty.

"Two LPG cylinders exploded in Sector 19 of the Maha Kumbh Mela, causing a big fire in the camps. Fire fighters are trying to douse the blaze," Akhara Police Station In-charge Bhaskar Mishra said.