EDITORS NOTE: Graphic content / A general view shows forensics collecting evidence at the site of a bomb blast which struck worshippers gathering to celebrate Palm Sunday at the Mar Girgis Coptic Church in the Nile Delta City of Tanta, 120 kilometres (75 miles) north of Cairo, on April 9, 2017. - The attack was claimed by the Islamic State (IS) group. (Photo by STRINGER / AFP) (Photo credit should read STRINGER/AFP/Getty Images)
