A day after Pakistani President Pervez Musharraf accused his Afghan counterpart of not wanting to confront the ground reality in his country, it was the turn of Hamid Karzai, who slammed the former for "not doing enough" to stop some madrassas in Pakistan breeding extremists.
Karzai's remarks in an interview to CNN, asserting that the use of extremism as an "instrument of national policy" is not in the best interests of Pakistan, comes just ahead of the Pak-US-Afghan dinner meeting at the White House.
"He is right to say that I know the facts (about what is happening in Afghanistan). I indeed know the facts, but I also know a lot of facts in Pakistan.
"And that's why I am pleading with President Musharraf that, for the sake of security for all of us and for our allies, it is extremely important to place serious attention and take action against some of the places called madrassas that are not madrassas, but are training extremists full of hatred for the rest of the world," Karzai said.
Karzai argued that Musharraf was not doing enough at all to stop that kind of religious training and that the "sanctuary" for extremists inside Pakistan will have to go.
"Not doing enough at all and I want all of us to take more action," he said.
"If on the one hand Afghan people are asking for more schools, better education, more help, they cannot be ones to destroy themselves. Somebody else must be doing it and that someone else is the sanctuary in Pakistan to terrorists.
"That sanctuary has to go," he emphasised.
On Musharraf's deal with tribal leaders in North Waziristan, he said although the whole thing does not "look nice" it would have to be given some time.