Representational image of a blast. — Reuters/File

At least seven people, including five children, were killed and 25 others injured when a gas cylinder exploded inside a house in Balochistan’s Chaman on Thursday.

A large number of residents, including children and women, were gathered at a house in the Torpal area of Chaman where lassi was being distributed when the gas cylinder exploded, police said, citing initial findings.

Police officials said a 20-kilogram gas cylinder kept in the kitchen exploded, collapsing multiple rooms and causing casualties.

Police and rescue teams rushed to the scene and shifted the bodies and injured to the hospital for treatment and medicolegal formalities.

A bomb disposal squad was also called in to determine the exact nature of the explosion, the officials added.

— This is a developing story and is being updated with more details.