UK and EU Leaders Agree on Last-Minute Deal to Try Stop "Brexit"

Members of the European Union have come to an agreement over conditions designed to entice Britain to stay in the 28-nation bloc. Image: British Prime Minister David Cameron leaves after a final press conference at an EU summit in Brussels on Friday, Feb. 19, 2016. (AP Photo/Geert Vanden Wijngaert) (AAP)

British Prime Minister David Cameron leaves after a final press conference at an EU summit in Brussels on Friday, Feb. 19, 2016. Source: AAP

UK Prime Minister David Cameron is expected to call a referendum on the membership in June.