Britain's Prime Minister David Cameron said on Thursday that there is a progress in talks with European Union leaders regarding Britain's membership in the European Union (EU).

"Nothing is certain in life, nor in Brussels, but what I would say is there is a pathway to a deal in February," he said after the EU summit in Brussels.

European Council President Donald Tusk said after the EU summit that he was more optimistic that a deal between Britain and EU will be reached in February to keep Britain in the EU.