Chandigarh, Feb 6 (IANS): At least four vehicles and one liquor vend were set ablaze in the violence that erupted following an accident in which two youth were killed in Punjab's Dera Baba Nanak town on Tuesday, police said.

The two were killed while they were riding on their two-wheeler and it was hit by a pick up jeep in the town around 55 km from Amritsar.

The speeding pick-up jeep belonging to a liquor contractor hit the victims' scooter from behind. Both died on the spot.

Family members of the victims alleged that the liquor contractor had deliberately killed the youth.

"We registered a case of murder," Batala Senior Superintendent of Police Upinderjit Singh Ghumman told the media.

The police rushed to the spot after violence broke out. However, by then the mob had set the vehicles and the liquor vend on fire.

A fire tender was rushed to the spot.

Dera Baba Nanak town is around 255 km from here. It lies close to the international border with Pakistan.