Polish president warns EU could collapse in case of UK exit

Polish president Andrzej Duda has warned that the European Union could face collapse if Britain decides to leave the bloc following a referendum that could come as early as this summer.

The 28-nation EU is negotiating a reform of EU rules aimed at discouraging a British exit by cutting red tape and restoring some decision-making back to national capitals.

If British Prime Minister David Cameron gets the reforms he wants, he feels that a referendum could decide Britain should remain a member. With its free-market orientation, robust foreign policy and nuclear capabilities, Britain has been an important if often-reluctant member. Duda said a departure would be devastating.

Duda said he thought "it would lead to a big crisis and even a collapse if the U.K. left."