The entrance of the health club in the damaged five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AM

An Iraqi Soldier wears slippers of the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AP

Iraqi soldiers walk along the damaged floors in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7B8

General view of the damaged swimming pool in the five-star Ninewah Oberoi Hotel next to the Tigris river in Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AG

An Iraqi soldier looks at the damages in one of the rooms in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7B4

A destroyed mural in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AH

An Iraqi soldier stands in a damaged room in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2107. REUTERS/Ahmed Jadallah - RTX2Z7AR

General view of the damaged five-star Ninewah Oberoi Hotel damaged in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AF

An Iraqi soldier walks with his weapon in front of the damaged five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AJ

An Iraqi soldier walks in the damaged room in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AN

Iraqi soldiers look out from a damaged room in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AU

General view from insde shows the damage to the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7B9

A damaged bathtub in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2107. REUTERS/Ahmed Jadallah - RTX2Z7AL

An Iraqi soldier holds his weapon while looking over a balcony between the damaged floors in the five-star Ninewah Oberoi Hotel in Mosul city, Mosul, Iraq January 30, 2017. Picture taken January 30, 2017. REUTERS/Ahmed Jadallah - RTX2Z7AS