There were 23 persons in the van and they were returning to Irukangudi in Virudhunagar district after attending a function at Puthiyamputur near here when the mishap occurred.
One of the tyres of the van burst. The driver was changing the tyre when the lorry rammed the van from behind, killing eight people on the spot.
Four persons who sustained serious injuries were rushed to a hospital and one of them died later, police said.
