NEW : Congo rebels blame Rwandan Hutus for attack , report says . The New York Times reports that the rebel group has been fighting since 2002 and is led by Laurent Nkunda, a former Hutu who fought in Rwanda's 1994 genocide against Tutsis. Torrential rain makes refugee movement difficult . `` We think it could have been insurgents close to Nkunda who attacked , but we can not rule out the [ Rwandan rebels ] , '' spokesman Col. Pierre Cherayron was quoted as saying . U.N. refugee agency : Some 375,000 have been forced from homes in past year .
NEW : Congo rebels blame Rwandan Hutus for attack , report says . The New York Times reports that the rebel group has been fighting since 2002 and is led by Laurent Nkunda, a former Hutu who fought in Rwanda's 1994 genocide against Tutsis. Torrential rain makes refugee movement difficult . U.N. refugee agency : Some 375,000 have been forced from homes in past year .