A milestone military victory for the Taliban is casting doubt on whether the militant group intends to negotiate a power-sharing agreement with the central government, according to State Department officials alarmed by the worsening security crisis.

Amid a string of Taliban successes, Kabul has been rocked by attacks in recent days, with the group targeting Afghan government officials and Afghan air force pilots, U.S. Charge d’Affaires Ross Wilson’s team is criticizing the group for taking actions contrary to its purported support for peace negotiations.