ABIDJAN, Ivory Coast (AP) — Up to 10 new mass graves have been discovered near the site of a July attack on a camp for displaced people, officials said Tuesday, amid allegations that initial casualty totals were downplayed to mask killings carried out by the national army.

Rights groups claim summary executions were carried out by the Republican Forces of Ivory Coast, known by its French acronym of FRCI. Last month, officials found six bodies in a well close to the former campsite in the western town of Duekoue.