United Nations Refugee Agency (UNHCR) Special Envoy Angelina Jolie met with displaced families during a visit to the city of Mosul, in Iraq on Saturday.
The Hollywood actress arrived in the city on the second day of Eid al-Fitr, the Muslim holiday marking the end of the fasting month of Ramadan.
Jolie spoke of the devastation that of Iraq's Mosul she witnessed on her tour of the city.
"This is the worst devastation I have seen in all my years with UNHCR. These people have lost everything and the trauma and the loss they have suffered is unparalleled. They are here on their own with very little support, next to nothing, and they are rebuilding themselves with their bare hands, they are removing the rubble with their bare hands."
The visit was Jolie's 61st mission and her fifth visit to Iraq with the agency since 2001.
Iraqi Prime Minister Haidar al-Abadi declared a final victory in Mosul in December 2017 as Iraqi forces drove the last remnants of the group from the country, three years after Daesh captured about a third of Iraq's territory.
The government said the declaration of victory meant Iraqi forces had secured the western desert and the entire Iraq-Syria border, and marked the end of the war against Daesh.
