Actress Angelina Jolie is visiting a refugee camp in Mardin in south-eastern Turkey as part of her work as special envoy for the United Nations High Commissioner on Refugees Antonio Guterres.
Both are expected to visit the camp, which shelters those who have fled the four-year conflict in neighbouring Syria.
The visit is the latest in a series of trips the Hollywood star has made to Turkey, which hosts the greatest number of refugees in the world - 1.59 million, according to the latest UN figures.
Jolie was spotted walking around town, briefly stepping into a handicraft shop accompanied by her daughter Shiloh and minders.
The UN says the number of Syrian refugees seeking its help now tops 2 million - and could be far higher.