Poland is leading a call for tough measures against Russia at a Brussels summit, Thursday, as the Crimean parliament votes for a referendum to leave Ukraine. Before an emergency summit on the crisis in Ukraine, Prime Minister Donald Tusk had talks with leaders of the Visegrad Group of countries - Hungary, Slovakia, Czech Republic and Poland - on a response to the Ukraine crisis. Tusk also met with President Hollande of France and the UK's PM David Cameron. Poland, alongside other member states from the CEE region and UK and Sweden want a tough response with a promise of sanctions...