Thousands of residents have been fleeing eastern Aleppo after simultaneous advances inside the divided city by Syrian government and Kurdish-led forces.

The United States has blamed Russia for an overnight attack on an aid convoy that killed 20 civilians, as the United Nations announced it was suspending overland deliveries in Syria, jeopardising food and medical security for millions of besieged and hard-to-reach civilians.

The little boy who became the face of Syria’s suffering after a video of his bloodied face went viral has been reunited with his parents.

A wave of air strikes and shelling have killed more than 60 people in less than 24 hours in the Syrian city of Aleppo, monitors and activists said.

Close to 50 civilians have been killed and many more wounded in missile attacks on at least five medical facilities and two schools in northern Syria, UN Secretary-General Ban Ki-moon said.