LIBYA'S warring sides reopened the main coast road across the frontline, a key element of a ceasefire they agreed last year that has involved months of negotiations. The U.N.-backed 5+5 committee drawn from commander Khalifa Haftar's eastern-based Libyan National Army (LNA) and western-based forces that have supported Tripoli-based governments said in a statement the road was open from 0900 GMT. The road, which stretches along the length of Libya's coastline, the most populated part of the country, was cut between the cities of Misrata and Sirte, where the frontline stabilised last summer. It was not open to military traffic, the…