Polish leader Duda fears 'crisis' if UK leaves

 Poland's new President, Andrzej Duda, has warned that the European Union would face a "very serious crisis" if the UK were to leave. UK PM David Cameron has promised a referendum on EU membership by the end of 2017 and is pushing for reform. Speaking to the BBC, Mr Duda said he wanted to see the EU "fixed" to make it more efficient and more democratic. But he criticised Mr Cameron's key proposal to delay in-work benefits for new EU migrants for four years. He said he would not accept any EU labour laws that could discriminate against individuals from particular member states.Correspondents say Mr Duda's surprise election victory in May signalled a shift to the right in Polish politics. He is an ally of the ruling conservative Law and Justice Party (PiS), which has come to blows with domestic and EU critics in recent weeks over claims it is trying to manipulate state institutions.