Poland said on Saturday it would summon Russia's envoy after he said Warsaw was partly to blame for the outbreak of World War Two, continuing a spat which has seen the Polish ambassador in Moscow summoned twice in just over a week.
Russian President Vladimir Putin on Sunday branded U.S. support for rebel forces in Syria as illegal and ineffective, saying U.S.-trained rebels were leaving to join Islamic State with weapons supplied by Washington.
Iran's supreme leader has said Saudi Arabia should apologise for a crush outside the Muslim holy city of Mecca that killed 769 worshippers performing the annual haj pilgrimage, Khamenei's website said on Sunday.