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Angel Gurria, secretary-general of the Organisation for Economic Co-operation and Development (OECD), and Russia's Finance Minister Anton Siluanov attend a briefing at the G20 Summit in Strelna

Angel Gurria (R), secretary-general of the Organisation for Economic Co-operation and Development (OECD), and Anton Siluanov, Russia's Finance Minister, attend a briefing at the G20 Summit in Strelna near St. Petersburg, September 5, 2013. REUTERS/Roman Yandolin/RIA Novosti/Pool

World leaders meet at G20 summit

World leaders from G20 are meeting in St Petersburg, Russia, with the crisis in Syria high on the agenda.