A couple and their 5-year-old son were killed while their 8-year-old kin sustained grievous injuries after their car rammed into a truck in Nagpur, police said.

The accident took place near Bazargaon on Nagpur-Amravati Highway, some 50 kilometres from the district headquarters, an official said. "Roshan Ramaji Tagde (28), his wife Anchal (23) and son Ram, residents of Kalamna area of Nagpur, died and Anchal`s niece Joya Akash Meshram (8) sustained grievous injuries after their car rammed into a truck from behind," he said.