I would like to see President Assad face full international justice for the appalling crimes he has meted out on his people. Every night we see his helicopters, his aeroplanes, bombing, maiming and killing his own citizens.
That is why 500 of them flee across this border to where I am standing right now. But what we want to see is transition in Syria. We want Assad to go, we want to see a peaceful political transition and a safe country for the future.
Prime Minister David Cameron said Syria's President Bashar al Assad should face "full international justice" for his "appalling crimes".
The Prime Minister has faced questions about his promotion of arms deals during a three-day tour of the Gulf region that started today.