In 2012, the Haqqani Network was formally designated as a terrorist organization by the United States.

The network, which is based in Waziristan, a tribal area of Pakistan, is linked with both the Taliban and al Qaeda. It also operates across the border in Afghanistan, reported CNN.

Nabil, a former Director of National Directorate of Security (NDS), said the attack being planned in the West will be in 9/11 style.

"1- If state sponsors of terrorism in the region are not stopped we will see another 9/11 style attack in future. Alqaeda’s Al-Zawahiri, Abu Muhammad Al Masri & Saif ul Adel are still planning for attacks in the west with the backing of #HQN which is based in PAK. @realDonaldTrump," Nabil tweeted.

He informed that Al-Qaeda in the Indian Subcontinent (AQIS) and Al-Qaeda Central (AQC) are only strong in areas where the Haqqani Network is active.

"5-Intel sources are aware that the presence of AQIS & AQC is only strong in areas where HQN is present/active & these agencies are sitting on piles of evidence," he tweeted.

He said Abdul Rauf Zakir, who was also known as Qari Zakir, was the chief of suicide operations for the Haqqani Network and he was killed with former head of al-Qaeda terrorist group Osama Bin Laden's son Hamza bin Laden in a drone strike last year.

"Hamza bin laden was killed with Qari Zakir in the same drone strike. The Taliban particularly HQN have never denounced Alqaeda [Al-Qaeda]. From the materials seized in Abbottabad to Sheltering Farooq Al Qahtani in Kunar the intelligence communities knows this very well," Nabil said.