Afghanistan said its own security may be threatened by a peace deal to impose Islamic law in northwestern Pakistan.
A spokesman (Humayun Hamidzada) for Afghan President Hamid Karzai also said the deal could harm already tense relations between the two neighbors.
The spokesman told reporters Tuesday that Afghanistan is asking the Pakistani government to take into consideration the impact the deal will have on security and bilateral relations.
Pakistani President Asif Ali Zardari has approved the controversial pact, which allows Islamic law in Malakand Division in the northwest. Pro-Taliban militants have promised to end their violent attacks and lay down their arms.
The Afghan government has repeatedly accused Pakistani security forces of supporting militants who cross the border and stage attacks on Afghan forces and international troops.
Afghanistan is facing the highest level of militant violence since a U.S.-led coalition ousted the former Taliban government.
The United States also has expressed concern about the Pakistani peace deal, which also includes the former resort region of Swat Valley, now mostly under militant control after more than a year of fighting.
U.S. President Barack Obama recently announced a revamped strategy to fight Afghanistan's growing Taliban insurgency. Mr. Obama said a key part of his new plan is defeating militants operating from bases in Pakistan's border regions.
Some information for this report was provided by AFP and Reuters.