UPDATE 1-Militia clash in west Libya kills 14 people
* Government says sending force to intervene
* Third day of fighting between neighbours near western town
* Violence a test for the fragile government
* Ethnic and tribal conflicts rocking Libyan stability (Updates with death toll, interior minister)
By Taha Zargoun
TRIPOLI, April 3 (Reuters) - A flare-up of fighting between rival militias in the west of Libya has killed 14 people, the country's interim leadership said on Tuesday, and officials announced the despatch of a force to restore order.
The clashes, between members of the Berber ethnic minority and their Arab neighbours around the town of Zuwara, are a fresh test for the government which has struggled to assert its authority since a revolt last year ended Muammar Gaddafi's rule.
Militias from inside the predominantly Berber town, about 120 km (75 miles) west of the Libyan capital, were exchanging mortars and large-calibre fire with fighters from the nearby Arab settlements of Al-Jumail and Regdalin for a third day.
The fighting around Zuwara, on the Mediterranean coast, is typical of the kind of tribal and ethnic conflicts that have flared up since Gaddafi's fall. Continued...