Global outrage at attack on Syrian aid convoy

US and Russia in 'parallel universe' on Syria ceasefire

US Secretary of State John Kerry and Russian counterpart Sergey Lavrov have clashed at the UN over the failed Syria ceasefire.

It follows the attack on an aid convoy in Syria which killed 21 people, which the US blamed on Russia but Moscow has denied any involvement in.

Here are the key developments:

The attack on Monday night left at least 21 people dead, aid agencies said
The aid convoy was delivering aid for 78,000 people at the time of the attack
The United States believes two Russian jets carried out the airstrike, something Russia has denied
At the UN, Mr Kerry appeared to suggest Mr Lavrov was a 'spoiler' who 'shredded' any hopes of a ceasefire
Mr Kerry has also called for no-fly zones to be implemented in Syria
Mr Lavrov said a ceasefire would only work if there was a comprehensive approach with simultaneous steps taken by all parties involved
The UN has said it will resume humanitarian aid convoys within Syria

There has been global outrage at an attack on a Red Crescent aid convoy carrying supplies to 78,000 people in Aleppo.

The attack destroyed 18 lorries carrying food and medicine, and left at least 21 people dead,

Some aid officials said the attack could constitute a war crime.

Both the Syrian government and its Russian allies insist they are not responsible, as hopes of another ceasefire lie in tatters.

Last updated Wed 21 Sep 2016