Fresh clashes between Tabu and Tuareq tribes broke out in Ubari town in southern Libya on Sunday.
Security sources in the town said 4 Tuareq fighters were killed and 5 others wounded when Tabu heavily armed fighters advanced toward Tuareq areas from 3 directions.
The clashes violate Doha ceasefire agreement signed between both tribes in November.
The Social Council of Tuareq held the Tabu attackers responsible for the loss of lives and consequences of agreement violation.
