A member of the armed wing of the Islamist movement Hamas was killed while handling explosives in the Gaza Strip overnight, a Palestinian medic said on Friday. Imad al-Selkawy, 25, suffered fatal injuries in the accidental blast, which occurred at Deir el-Balah in the centre of the Palestinian territory, the medic said.Hamas's armed wing the Ezzedine al-Qassam Brigades confirmed the death in a statement, saying its activist had been killed during a "mission of jihad," a phrase it uses to describe such incidents.