In this picture taken Thursday, April 14, 2016, the Palmyra citadel is seen in the background as Syrian families load their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. Thousands of residents of this ancient town who fled Islamic State rule are returning briefly to check on their homes and salvage what they can – some carpets, blankets, a fridge or a few family mementos. There is no water or electricity in the town, and it will be at least few months before anyone can return to stay. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, Syrian soldiers walk through a devastated part of the town of Palmyra as families load their belongings onto a bus in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian boy waits his family to loads their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian man carries a carpet as walk through a devastated part of the town of Palmyra as families load their belongings onto a bus in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a general view shows Palmyra town as Syrian families retrieve belongings from their homes in central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian boy waits his family to loads their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian family pulls a trolley containing belongings to load them onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, Syrian families load their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, Syrian families wait to load their belongings onto a bus in the town of Palmyra in central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a general view shows Syrian families returning the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, Syrian families load their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian girl waits for her family to load their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, a Syrian family pulls a bike containing belongings to load them onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)





In this picture taken Thursday, April 14, 2016, the Palmyra citadel is seen in the background as Syrian families load their belongings onto a bus in the town of Palmyra in the central Homs province, Syria. (Photo by Hassan Ammar/AP Photo)