Former Syrian Prime Minister Riad Hijab, who defected to Jordan last week, has said the Syrian regime is collapsing "morally, financially and militarily"

Speaking in the Jordanian capital, Amman, he said the regime did not control more than 30% of the territory

He called on the opposition abroad to unite and on the Syrian army to stand alongside its people

UN humanitarian chief Valerie Amos is in Syria to assess ways to increase the flow of emergency aid there.