US President Donald Trump's plans for his country to take over the Gaza Strip and resettle its population are "very surprising," says Filippo Grandi, the head of the UN's refugee agency. Speaking during an interview in Brussels, Grandi also addresses the number of Syrians returning to the country in the wake of Bashar al-Assad's ouster, describing the figure of 800,000-900,000 as "extraordinary." IMAGES AND SOUNDBITES