EU leaders tell Britain to exit swiftly, market rout halts

By Michael Holden and Elizabeth Piper LONDON/BRUSSELS (Reuters) - European leaders told Britain on Tuesday to act quickly to resolve the political and economic chaos unleashed by its vote to leave the European Union, a move the IMF said could put pressure on global growth. British Finance Minister George Osborne, whose attempt to calm markets had fallen on deaf ears on Monday, said the country would have to cut spending and raise taxes to stabilise the economy after a third credit ratings agency