ak kwoerding to the government of south sudan, the presence of rebels in the town is a clear indicationf the responsibility. >> the rebel are not committed as you can see. they have been violating the cessation of hostilities which we signed on the 23 of january, 24th. >> this like other towns in south sudan has changed hands several times since fighting began in december. here people from darfur are believed to have been targeted for a specific reason, because rebels from sudan are commonly believed to have been fighting alongside the president. >> what we have seen in these towns is utterly horrible and beyond description. >> reporter: the un has accused the rebel forces of killing civilians based on their ethnicity a charge any rebel commander in the area denies. >> no, i do not -- i deny that report. we don't kill the -- those who are in the mosque. i think who are those people, we don't know. we do not know. >> reporter: as the conflict continues the levels of violence seem to be escalating with even the traditional places of sanctuary coming under attack. >>> one week after they w