Five members of a family, including two children, were killed in a multiple collision involving the car in which they were traveling and a lorry, on the Chennai-Trichy national highway near Veppur in Tamil Nadu's Cuddalore district, police said on Tuesday.

The car, bound for Chennai, halted near Veppur in the early hours owing to the traffic congestion caused due to the construction of a flyover at Iyyanarpalayam when a speeding lorry crashed into the car from behind.