A speeding three-wheeler hit constable Abdul Majeed Tantray, a resident of Handwara, at Soura on the outskirts of the city injuring him critically.
The constable was rushed to nearby SKIMS Hospital where he succumbed to injuries, police said.
A tractor rolled down into a gorge near Ourigund village in Pulwama district killing its driver Abdul Hamid Dar, they said.
Two persons, travelling on the tractor, were injured, police said.
Burhan-u-Din, a 17-year-old boy, was killed when he lost control of his motorcycle and rammed it into a wall of a house in Noorbagh locality in Sopore, some 55-km from here.