Reacting to the result of the US presidential election, Mr Egeland said the UN needed "uninterrupted, full engagement" from the US over Syria, pointing out that the only progress made at all had taken place when the US and Russia were involved and using their influence.
The Obama administration has backed the opposition to Syrian President Bashar al-Assad since the uprising against him erupted in 2011 and also condemned Russia's air campaign. But President-elect Donald Trump has said he wants to mend ties with Moscow and is against regime change in the Middle