KABUL, Afghanistan (AP) — President Hamid Karzai accused British and U.S. forces on Tuesday of continuing to operate “illegal” detention facilities in the country, another volley in the rancorous disagreement between the Afghan leader and his foreign backers over what to do with captured Taliban suspects.

A Karzai-appointed investigation panel found six Afghan detainees at a British-run facility at Kandahar Air Field in the south and another 17 at a British detention facility at Camp Bastion in Helmand province, according to commission leader Gen. Ghalum Farooq Barakzai. He said no detainees were found at the American facilities but said they should no longer even exist.