Pope Francis tries a skullcap during a weekly general audience at St Peter's square on April 5, 2017 in Vatican. Pope Francis on Wednesday condemned a suspected chemical weapons attack in Syria that left more than 70 dead in a rebel-held town as an "unacceptable massacre". "We watch horrified as the latest events in Syria unfold," Francis said at his midweek public audience in St Peter's square. / AFP PHOTO / Filippo MONTEFORTE