Kabul, Afghanistan (CNN) -- Afghan President Hamid Karzai is calling the United States' refusal to hand over an undisclosed number of detainees a breach of an agreement that outlines the transfer of power from U.S. forces to Afghanistan. Karzai's accusation comes two months after the United States handed over Parwan prison at Bagram Air Base. The handover of the prison and detainees was considered the linchpin in a larger agreement that spells out U.S.-Afghan relations following the withdrawal of American troops in 2014. Read more: Ex-Afghan prisoner claims Bagram abuse In a statement released Monday, Karzai called the failure to hand over all the detainees "a serious breach of the Memorandum of Understanding." He ordered his defense minister, attorney general and prison administrator "to take required and urgent measures" to ensure the complete transfer of authority.
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Afghan president: The U.S. military is holding detainees who belong under Afghan control
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A U.S. official says 99% of all detainees have been turned over
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The U.S. military is concerned about Afghanistan's ability to handle cases, an official says
Read more: @placeholder holds on to some detainees during handover of prison to Afghan control