Actress Angelina Jolie, the UN refugee agency's special envoy, has toured a refugee camp in Jordan for Syrians who fled the civil war in their country.
The Hollywood star arrived in the Zaatari camp, which hosts about 27,000 Syrians displaced by the 18-month conflict. She met Syrian refugee women separately and toured the sprawling tent city.
Jolie was accompanied by UN refugee chief Antonio Guterres and Jordanian foreign minister Nasser Judeh. Mr Guterres said the "camp needs massive international funding" and its "conditions are still not acceptable".
Jordan has sheltered more than 185,000 Syrian refugees - the largest number in the region.
The United Nations High Commission for Refugees (UNHCR) promoted Jolie in April from serving as its goodwill ambassador to special envoy due to her work for the agency.
Her eyes welling up with tears, Jolie said she heard "horrific" and "heartbreaking" accounts from Syrian refugees who fled the civil war in their country to find shelter in the camp.
She said: "I am very concerned, the world is very concerned. What is very heartbreaking is when Syrian people ask you why you think no one is able to find a solution for them. What they described on the ground, hearing it from them is so horrific."
She added that the children's stories were especially moving. The actress also said some of the refugees expressed fears "there will be no more of us" left in Syria as the relentless bloodshed grinds on.
Meanwhile, it has been revealed that the number of Syrian people seeking help from the UN refugee agency has passed a quarter of a million. Agency spokesman Adrian Edwards said 253,106 people have registered or are awaiting registration as Syrian refugees.
Officials acknowledge, however, the real number of Syrian refugees is likely to be far higher since tens of thousands are believed to have not yet registered with authorities.