G20 summit: World leaders meet in Brisbane
World leaders are meeting in Brisbane, Australia, for the first day of the G20 summit.
The two-day summit, attended by the US, Chinese and Russian leaders among others, will focus on promoting growth.
In a speech, US President Barack Obama sought to reassure Asia-Pacific allies of the US' commitment to the region.
Vladimir Putin is expected to face a hostile reception from some Western leaders concerned about Russia's increasing military assertiveness.
Speaking ahead of the G20 summit, the Russian president said US and EU sanctions imposed over Russia's actions in Ukraine would harm not just Russia but the global economy.