Francis has not previously described the situation in Gaza as a genocide in public. But last year he was at the centre of a messy dispute after a meeting with a group of Palestinians at the Vatican, who insisted he had used the word with them in private, while the Vatican said he had not.

It's the first time that Francis has openly called for an investigation of genocide allegations over Israel's actions in the Gaza Strip.

ROME, Nov 17 (Reuters) - Pope Francis has suggested the global community should study whether Israel's military campaign in Gaza constitutes a genocide of the Palestinian people, in some of his most explicit criticism yet of Israel's conduct in its year-long war.