Kedah PAS has urged Menteri Besar Mukhriz Mahathir to state his stand on his father's vicious criticisms of Prime Minister Najib Abdul Razak as the state government needs to clear the air on the matter.

"On the issue (of former PM Dr Mahathir Mohamad's criticisms), Kedah PAS feels the state government's leader must show concern for the crisis that is happening in the country, by stating his position on Mahathir's criticisms or Najib's wrongdoings.