The UN Security Council has unanimously welcomed the formation of an interim unity government in Libya, describing it "an important milestone".

The transitional body, comprising a prime minister and a three-member presidential council, was agreed last week.

It's intended to replace rival authorities in Tripoli and Benghazi.

If all goes well, it will lead the country into elections this year.

In a statement, the Security Council called for a comprehensive national reconciliation process.

Libya has been beset by violence since forces backed by NATO overthrew its leader, Muammar Gaddafi, in 2011.