SANAA, Yemen, Feb. 4 (UPI) -- Clashes with assault rifles and rocket-propelled grenades raged Tuesday between rival tribesmen in a suburb of the Yemeni capital Sanaa for the fifth consecutive day, but authorities made no attempt to end the conflict.
A row between the Hamadan and Abi Matar tribes erupted last year over the ownership of hills located on the border between the two groups' lands. Clashes resumed last week with no settlement in sight. Mediation by tribal notables has so far failed, a tribal source told United Press International.
So far no casualties have been reported. Clashes last year claimed the lives of two men and one woman.
Tribal confrontations often occur over water resources, agricultural and grazing land.
The Yemeni tribal population is highly armed and according to official reports the Yemeni population possesses an estimated 50 million weapons. An estimated 5,000 people are killed annually in tribal conflicts.