Four children from the same family were hurt Saturday when an explosive device believed to be a left over by the Israeli army went off at their home, according to local sources. The children were playing outside their home in Wadi as-Salqa, a town south of Deir al-Balah, when the device exploded causing injuries from shrapnel fragments. Their house is only one kilometer away from the heavily protected border with Israel. The four children from the Muhareb family, the oldest was 7 years, were reported in moderate to light condition, according to a report of Palestine News and Information Agency "WAFA".