>> Up in smoke, food, medicine, and clothing for nearly 80,000 Syrians. 18 of these aid trucks burned in a strike late Monday night. About 20 Syrians killed, the Red Cross says. As well as the Syrian red crescent local director. The trucks were taking relief to a hard to reach town near Aleppo.
A further strike hit people that rushed to the site to help. The UN suspending all convoy movements in Syria following what it called a callous attack, and if deliberate, a war crime. Reuters' Tom Miles is in Geneva.>> The strike came on Monday night, and apparently, shortly after, the Syrian government had given permission finally for the UN to enter besieged areas in Syria where hundreds of thousands of people have been waiting for months, or perhaps in some cases, many months, if not years, for aid.
>> The Syrian observatory monitors said the attack was by Russian or Syrian planes. They've both denied any role. Syria's military had just declared the end of a week long ceasefire. And it's brokers, the United States and Russia, were due to take stock.>>
> It was already under strain after war planes from the US lead coalition against Islamic State bombed Syrian troops.
>> This humanitarian aid played an important part in the US Russia peace plan. Under the peace plan, there was supposed to be a truce accompanied by an increase in humanitarian aid. And leading to the formation of a joint US Russian center, which would jointly cooperate and target banned militant groups such as Islamic State and the group that used to be called the Nusra Front.
>> A Syrian Red Cross warehouse was also destroyed in Monday's attack. It has stopped work in Aleppo for three days, in protest.