The Rukban district is around 300 kilometers from Damascus, and one of the last remaining hard to reach places.
A large humanitarian aid convoy has managed to reach the remote area and distribute supplies to 40,000 people.
According to National News Agency WAM, it's been billed as the biggest aid operation in Syria to be carried out by the UN.
It took two months to put together, with a journey lasting nine days, involving more than 300 people and 130 trucks.

Two killed in underground explosion at Polish coal mine
Netanyahu to discuss Iran, next phase of Gaza plan with Trump
US President unveils 'Trump-class' battleships
Cambodia, Thailand to hold talks on resuming Trump's truce
Trump appoints envoy to Greenland, stirs backlash
Passenger bus crash in Indonesia kills at least 16 people
Japan prepares to restart world's biggest nuclear plant
Remaining 130 abducted Nigerian students have been released, official says
