yangon myanmar say friday visit u.s. official would allow go region violence trigger exodus nearly 400,000 rohingya muslims unite nations brand textbook example ethnic cleanse rohingya flee western rakhine state neighbor bangladesh escape military offensive raise question myanmar transition civilian rule leadership nobel laureate aung san suu kyi u.s. deputy assistant secretary state patrick murphy voice washington concern rohingya press great access conflict area humanitarian workers state department say myanmar officials say would meet government leaders capital naypyitaw attend address nation suu kyi tuesday would also visit sittwe state capital meet governor rakhine state government secretary tin maung swe tell reuters north state conflict erupt aug. 25 would limit allow tin maung swe say ask murphy would go maungdaw district heart strife begin rohingya insurgents attack police post army camp kill dozen people nearly 400,000 refugees pour across border bangladesh fear also grow humanitarian crisis myanmar side access aid workers reporters severely restrict myanmar insist friday bar aid workers government spokesman say authorities grind might concern security right monitor flee rohingya say army rakhine buddhist vigilantes mount campaign arson aim drive muslim population reuters photographer bangladesh side border say could see huge bank dark smoke billow myanmar territory friday international aid organizations say refugees keep come really sign flow people go dry chris lom international organisation migration say bangladeshi border district cox bazar still believe thousands people wait take boat across cox bazar u.n. secretary-general antonio guterres u.n. security council urge myanmar end violence say best describe ethnic cleanse myanmar reject accusations say security force carry clearance operations defend insurgents arakan rohingya salvation army claim responsibility aug. 25 attack similar though small attack october russia u.n. ambassador vassily nebenzia say friday moscow concern discard fact trigger terrorist activities talk myanmar government course tell reporters concern happen ... look forward early cessation violence elevate humanitarian situation population government declare arakan rohingya salvation army terrorist organization accuse set fire attack civilians ethnic cleanse recognize separate crime international law allegations ethnic cleanse part wide systematic human right violations hear international court right group amnesty international say evidence point mass-scale scorched-earth campaign across north rakhine unmistakably ethnic cleanse evidence irrefutable myanmar security force set northern rakhine state ablaze target campaign push rohingya people myanmar say tirana hassan group crisis response director group say detect 80 big fire rohingya areas since aug. 25. extent damage could verify due access restrictions government likely burn whole villages say also credible report rohingya militants burn home ethnic rakhine minorities 30,000 non-muslims also displace u.s. senate majority leader mitch mcconnell say thursday speak suu kyi say work get aid areas myanmar affect violence general still control national security policy nevertheless suu kyi widely criticize abroad stop condemn violence campaign muslim insurgents popular home u.n. refugee agency say rohingya arrive bangladesh suffer real hardship difficult condition see current refugee situation influx increase daily unhcr appeal initial amount 30 million emergency humanitarian response bangladesh end year agency spokesman say geneva bangladesh say refugees must go home call safe areas myanmar myanmar rule say accept anyone verify citizenship rohingya stateless thousands people demonstrate friday prayers bangladeshi capital dhaka denounce treatment rohingya one protest leader say demand u.n. peacekeeping force myanmar face charge international court myanmar say u.s. official bar rohingya conflict zone