Four members of a family were killed and three others critically injured when a speeding truck ploughed into a roadside house at Chandausi in Bihar’s Gaya district on Wednesday morning.

The house owner Mahendra Sao, his wife and a child besides the helper of the truck were killed on the spot when the truck driver lost control due to high speed, police said.

The injured were admitted to a hospital where their condition was stated to be critical.