ISLAMABAD (AP) — Pakistani clerics upset with anti-Taliban comments coming out of Afghanistan said Monday they will boycott a conference of religious leaders being held to denounce violence and press for a peaceful end to the 11-year-old Afghan war.

The head of the Pakistani clerics, Mufti Abu Huraira Mohiuddin sent a letter to his Afghan counterpart on Sunday announcing the move. In the letter, a copy of which was obtained by The Associated Press, Mohiuddin accused some Afghan clerics of using “unsavory language” against the Taliban and said the conference was shaping up to be a one-sided attack on the Taliban rather than a conference to press for peace.