The head of Libya's national oil corporation has urged the United States, France and Britain to do more to stop outside powers interfering in Libya.

Mustafa Sanalla refused to name the regional powers he was referring to.

But the United Arab Emirates, Egypt and Russia are supporting the forces of Gen Khalifa Haftar, while Qatar and Turkey have backed the UN-endorsed government of national unity in the west.

Mr Sanalla told the BBC the situation in his country was becoming very dangerous and there was a risk Libya could become like a new Syria.

An oil blockade imposed ten days ago by forces loyal to General Khalifa Haftar has limited production to just 72, 000 barrels of oil a day.

Libya had been producing more than a million barrels.