The spokesman , Bwambale Kakolele , said Rwandan Hutu rebels who also operate in the area were behind the attack , that report said . NEW : North Kivu rebels blame Ron Redmond for attack , report says . Internally displaced Rwandan flee as rebels attack government troops . Torrential rain makes refugee movement difficult . Nkunda refugee agency : Tens of thousands have been forced from homes in past year .
NEW : North Kivu rebels blame Ron Redmond for attack , report says . Internally displaced Rwandan flee as rebels attack government troops . Torrential rain makes refugee movement difficult . Nkunda refugee agency : Tens of thousands have been forced from homes in past year .