Three persons were killed and one injured when a dumper hit the motorcycle on which the victims were travelling in West Bengal's Howrah district on Wednesday, police said.
Deep Mondal, 32, along with his wife, son and niece were travelling on their motorcycle when the dumper hit the vehicle from behind on NH 16 in the Nimdighi area of Uluberia, police said.
Papiya Mondal, 26, Prithvis Mondal, 2, and Bidisha Mondal, 6, died at the spot while Deep was admitted to the hospital, they said.
The family was travelling from their home at Joarbaria village to Ghoshal Chak to attend a family function when the incident happened, police added.