US president Donald Trump has named former UK prime minister Tony Blair and US secretary of state, Marco Rubio as members of his so-called "board of peace," a body which he says will oversee the governance and reconstruction of Gaza.

With Trump serving as chair, the seven-strong board will also include US special envoy Steve Witkoff, World Bank president Ajay Banga, and the president's son-in-law Jared Kushner.