Myanmar has said members of its security forces were involved in the killing of 10 Rohingya Muslims found in a mass grave in Rakhine State, where the country’s military has been accused of ethnic cleansing.  Myanmar bans UN official a day after Myanmar state media reported that a mass grave had been found at Inn Din, north of Rakhine state capital Sittwe. Photos published by the military showed the grave being exhumed and multiple skeletal remains. Amnesty International, the UK-based rights group has called for an independent investigation.