File photo - French President Francois Hollande welcomes Saudi Defense Minister Prince Mohammed bin Salman bin Abdul Aziz al-Saud prior to a meeting at the Elysee Presidential Palace in Paris, on June 24, 2015. Saudi Arabia's king has appointed his son Mohammed bin Salman as crown prince - replacing his nephew, Mohammed bin Nayef, as first in line to the throne. Prince Mohammed bin Nayef, 57, has been removed from his role as head of domestic security, state media say. Photo by Stephane Lemouton/ABACAPRESS.COM