British Prime Minister David Cameron says he will do what he can to reach an EU reform deal that meets the needs of his country, but won't accept anything less.
"I was here until 5 o'clock (0400 GMT) this morning working through this, and we've made some progress, but there's still no deal," he says. "I'll do everything I can," he adds, stressing that he will only agree to a deal "if we get what Britain needs."
"The proposals currently on the table don't satisfy all the parties," adds Luxembourg Prime Minister Xavier Bettel. He expressed hope of finding an acceptable compromise by the end of the afternoon.
Estonian Prime Minister Taavi Roivas urged his counterparts to reach a deal. "I understand that we all of course pursue our national interests, but we should also bear in mind that if Britain leaves [the EU] we all get nothing," he said upon arrival for the second day of talks.