A former top American diplomat has said the United States should adopt a policy of total isolation against Pakistan, harshly criticizing the country for supporting the Afghan militant groups.

In an interview with the Times of India, Khalilzad said the step by US should be taken to send a signal that it faces the prospect of becoming a ‘second North Korea’ if it continues destabilizing Afghanistan by supporting the Taliban and Haqqani network.

Khalilzad further added “In the aftermath of the US drone attack killing Taliban leader Mullah Mansour, this is the time to increase the pressure by suspending all assistance to Pakistan — military and civilian — and move towards isolating Pakistan internationally, including not supporting IMF renewal of financial support.”

“If Pakistan truly changes course, then the US should be willing to be supportive in a significant way. But we have to substantially escalate the cost of Pakistan’s hostile policy in Afghanistan,” he added.

Khalilzad also called for retaining the current level of forces in Afghanistan and more flexible rules of engagement for US forces until the next President reviews the situation in Afghanistan and decides on a new policy.

The remarks by Khalilzad comes as a Pakistani senator earlier criticized the Taliban policy adopted by Islamabad and warned that the dichotomy in the state’s policy towards militants has brought Afghanistan and Pakistan close to a dangerous collision.

“Pakistan refuses to acknowledge that the Taliban ideology on both sides of the Durand Line is to destroy modern state structures,” Pakistan Peoples Party Senator Farhatullah Babar.

This comes as the Afghan officials have long been criticizing Pakistan for failing to take actions against the groups using the Pakistani soil to carry out attacks in Afghanistan.

The Afghan officials believe the notorious Haqqani terrorist network and the Taliban group leaderships are based in Quetta and Peshawar cities of Pakistan.