Both the US and UK leaders say they're committed to promoting a peaceful formation of a new government in Syria.
Rebels are in control of the country and former President Bashar al-Assad has fled to Russia.
UK Prime Minister Sir Keir Starmer told the BBC his diplomats will be engaging intensively with allies in the region.
He says there are no tears for Assad but there needs to be a peaceful transition.
UK Correspondent Rod Liddle told Heather du Plessis-Allan that the UK Government has announced that applications for asylum from Syria are going to be put on hold, and they’re considering sending some back.
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The Mike Hosking Breakfast