Fighting between armed factions allied to Libya’s competing governments broke out on Sunday near the country’s main border crossing to Tunisia, Libyan and Tunisian officials said.

The OPEC oil producer is caught in a conflict between two governments and parliaments since a group called Libya Dawn seized Tripoli in the summer.

The recognized government has been forced to work out of the east. In recent weeks it has sought to regain ground in the west with air strikes and the use of allied troops from the Zintan area calling themselves the Libyan National Army (LNA). […]