Foreign Secretary William Hague has said he welcomes the release of Libyan Prime Minister Ali Zeidan:
I welcome release of Libyan PM. We will work with Libyan gov on ensuring the transition remains on track and insecurity is addressed
In an earlier tweet, he said he has spoken to US Secretary of State John Kerry this morning about the recent developments.
More top news
Labour leadership contender Owen Smith has called his rival Jeremy Corbyn a "lunatic" at a rally.
A 6.2 magnitude earthquake has left at least 10 people dead and caused destruction in central Italy.
Witnesses reported "intense bombardments" inside the IS-held stronghold of Jarablus in an air and land assault.