yangon myanmar army say wednesday appoint senior officer investigate whether members security force involve kill 10 people whose body uncover mass grave rakhine state violent crackdown security force response attack militants western state cause around 650,000 rohingya muslims flee bangladesh recent months discover grave village inn din 50 km 30 miles north state capital sittwe announce military two days ago statement post facebook page military commander-in-chief senior general min aung hlaing army say five-member investigation team leave capital naypyitaw wednesday team lead lieutenant general aye win would investigate whether security force take part relation unidentified dead body find inn din village graveyard give detail military officials immediately available comment general aye win officer lead wide probe conduct troop conflict begin late august conclude report last month atrocities take place myanmar arm force launch term clearance operations northern rakhine many stateless muslim minority live rohingya militants attack 30 police post army base aug. 25. right monitor accuse troop abuse include kill mass rape arson operations unite state say amount ethnic cleanse myanmar civilian leader aung san suu kyi face fierce international criticism fail protect rohingya civilian government control military say army engage legitimate counter-insurgency operations promise investigate allegations abuse rakhine give evidence myanmar military appoint general probe mass grave rakhine state