In Orissa, at least nine security personnel of elite Special Operation Group, SOG, have been killed and 8 others seriously injured in a landmine blast by Maoists at Mantriamba, about 50-kilometres from Koraput this morning. <br/><br/>The SOG personnel were travelling in a vehicle from Malkangiri to Baipariguda in Koraput district to clear roads obstructed by the Maoists. DIG of Police (Southern Range), Sanjib Panda told our Correspondent that one SOG personnel travelling in the vehicle, is yet to be traced. <br/>