Fingers of one youth have been cut off, reports say.
According to security forces, the clash had taken place in the Nachchimar Kovil area on the Jaffna-KKS main road.
The injured have been hospitalised.
Security forces suspect jaffna based gangs to be behind this incident. Gangs such as Ava, Victor, Dhanurock and Ajith have been involved in violent incidents in the Jaffna region in the recent past.
Further investigations are underway.
(Pics : Madhava Kulasooriya - Vavuniya Corr.)