The Taliban in Afghanistan says it has acquired the security plans for an upcoming meeting of tribal elders where the elders are expected to make decisions on future ties with the U.S.

Afghan officials have dismissed the documents, published on a Taliban website, as fake. They say the material is a scare tactic, designed to intimidate participants coming to the meeting in Kabul this month.

The Taliban said on its website Sunday the group had received the plans from its personnel “embedded inside the enemy ranks.”

The Taliban attacked the last loya jirga, or traditional assembly, in 2010.