Paris climate conference: negotiators to work overnight for a deal – as it happened

The UN climate summit runs into overtime to allow more high-level lobbying

7.08pm GMT

All the big action is going to happen on Saturday, with negotiations now going through the night behind closed doors, so I'm going to wrap this liveblog up now.

Here's the top of Suzanne Goldenberg's news story on the state of play, which you'll soon be able to read in full on our Paris climate talks coverage page.

Barack Obama phoned the Chinese leader, Xi Jinping, on Friday in a last ditch effort to prise open a climate change agreement that can be unveiled at the UN climate talks in Paris on Saturday.

As the negotiations ran into overtime - something that has happened at virtually every meeting of the last 20 years - Laurent Fabius, the French foreign minister called for a cooling off period to allow more high level lobbying behind closed doors. Fabius put off planned public plenary sessions, which risk being volatile, and gave the floor over to closed meetings in a last push for an agreement.

6.50pm GMT

Laurent Fabius has reiterated hopes the text will be released at 9am on Saturday. He says the Paris Committee which he chairs will meet at noon, and the final plenary will be at 2pm.

.@LaurentFabius: "Tomorrow at 9 a.m., I will present a text that is as balanced & as ambitious as possible" #COP21 pic.twitter.com/7rGNM3HU1i