RAWALPINDI: Five more sons of soil have embraced ''Shahadat'' (martyrdom) while serving the nation during elections duty, Director General of Inter-Services Public Relations (ISPR) Major General Asif Ghafoor said in a tweet on Thursday. "Vehicle after delivering election material at NA-12 RO office fell 250 feet down the cliff on roadside. No sacrifice is more sacred than the life sacrificed in line of duty," the DG ISPR added.