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An interior view of the main press centre of the G20 summit is seen in Strelna near St. Petersburg

An interior view of the main press centre of the G20 summit is seen in Strelna near St. Petersburg September 4, 2013. REUTERS/Alexander Demianchuk

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.