geneva u.n. human right council expect hold special session kill rap crimes commit muslim rohingya myanmar drive 600,000 bangladesh since august u.n. source say monday special session december senior unite nations source tell reuters council spokesman rolando gomez could confirm date say move convene special session address human right situation country least 16 47 member state must request hold special session council rare bangladesh muslim-majority countries expect back call march council already set fact-finding team investigators report first mission bangladesh last month rohingya refugees flee myanmar testify consistent methodical pattern kill torture rape arson take place late rohingya exodus rakhine state bangladesh southern tip begin end august rohingya militants attack security post myanmar army launch counter-offensive u.n. high commissioner human right zeid ra ad al-hussein describe army crackdown rakhine state textbook example ethnic cleanse military deny accusations murder rape torture force displacement amnesty international activist group open letter send last week member state say special session imperative launch decisive action ensure international scrutiny monitor situation pope francis arrive myanmar monday diplomatically delicate visit leader roman catholic church majority-buddhist country u.n. right forum hold special session myanmar rohingya u.n. source