An aid convoy on Saturday reached a camp for displaced Syrians near the Jordanian border, the United Nations and the Syrian Arab Red Crescent said, in the first such delivery since January.
"The UN and SARC are delivering humanitarian assistance to 50,000 people in need at Rukban camp in southeast Syria," the UN said in a statement, adding the delivery was expected to take three to four days.
The convoy included much-needed food, as well as health assistance, the UN and SARC said.
"We are delivering food, sanitation and hygiene supplies, nutrition and health assistance in addition to other core relief items," the UN's humanitarian coordinator in Syria Ali Al-Zaatari said in a statement.
"We are also conducting an emergency vaccination campaign to protect some 10,000 children against measles, polio and other deadly diseases."
"There's great suffering as we have no doctors, hospitals or even field hospitals or a place for first aid."