Talks in Brussels on a possible Brexit are resuming this morning.
The British Prime Minister is hoping for an agreement that will pave the way for an in/out referendum later this year.
EU leaders - including the Taoiseach - will resume their summit on the issue at lunchtime.
Sticking points are thought to include plans for a so-called 'emergency brake' on benefits for migrant workers, and how a deal would be made binding.
David Cameron is back in negotiations in Brussels after talking through the night about his plans for EU reforms: “I was here until 5am this morning, working through this and we have made some progress, but there is still no deal.
“As I have said I will only do a deal if we get what Britain needs.
“So we are going to get back in there, we are going to do some more work and I will do everything I can.”