Simon Harris set to become Ireland's new prime minister Putin says four gunmen in Moscow terrorist attack arrested Italy condemns Moscow terror attack, tightens security across country Putin calls Moscow terrorist attack bloody, barbaric, vows retribution Rising prices top concern for EU Four charged with terrorism following Moscow attack Attack highlights security challenges Kyiv rocked by explosions amid airstrikes Junior doctors in England back more strike action Rally car crash kills 4, injures several in Hungary Tributes pour in for victims of Moscow concert hall terrorist attack Turkish police detain 24 suspected IS members Two still in race to replace Slovakia president Death toll in Moscow terror attack rises to 137 People in Beijing honor victims of attack in Moscow Russia Today shows interrogation of suspected terrorist Gunmen storm police station in Armenian capital Europe's far-right gets together ahead of vote Number of victims in Moscow terrorist attack rises to 285