Ukraine's former president, Petro Poroshenko, landed in Kyiv on Monday to face treason charges in a case he says was trumped up by allies of his successor, Volodymyr Zelenskiy.
In a brief stand-off at border control after arriving on a flight from Warsaw, Poroshenko accused border guards of taking away his passport. He later greeted a crowd of thousands of cheering and flag-waving supporters outside the airport.
