Families and friends of the Palestinians who were abducted by gunmen in Egypt's Sinai's northern region take part in a demonstration calling for their release, at the Rafah border crossing with Egypt in the southern Gaza Strip, on September 13, 2015, 2015. Gunmen in Egypt boarded a bus carrying Palestinians from Cairo to Gaza on August 19, 2015 and seized four of the passengers before letting the others continue, Hamas officials in the strip said. Photo by Abed Rahim Khatib