Mexico supports UN Security Council
5 September 2013 Last updated at 21:53 BST
World leaders are locked in a divisive debate over Syria, at the end of the first day of the G20 summit in Russia.
Opening the summit, Russian President Vladimir Putin confirmed Syria would be discussed at the working dinner.
US President Barack Obama is pushing for support for military strikes. Russia and China have warned the US not to take action without UN backing.
The BBC's Jon Sopel spoke to Mexican President Enrique Pena Nieto, and asked him what should happen next.