He had earlier said the militants involved in the attack on the Wana Military College had been in contact with their organisers in Afghanistan.
The interior minister did not provide further details about the identities of those involved in the recent suicide bombings.
On Monday, militants attacked the Wana Military College in South Waziristan, resulting in at least three deaths.
On Tuesday, a suicide bombing near the Islamabad Judicial Complex killed at least 12 people and wounded 27 others. Jamaat-ul-Ahrar, a splinter faction of Tehreek-e-Taliban Pakistan (TTP), claimed responsibility for that attack.
Although no group has claimed responsibility for the Wana attack, Pakistan’s army attributed it to TTP.
The Rawalpindi Counter Terrorism Department on Thursday arrested seven suspects who officials said had facilitated the suicide bombing at the Islamabad Judicial Complex.
A day after the attack in Islamabad, Pakistan’s prime minister told Parliament that India and the Afghan Taliban had been involved in the terrorist attack in Pakistan.
Defence Minister Khawaja Asif also warned that Pakistan might take military action inside Afghanistan. He rejected the Afghan Taliban’s condemnation of the attack, describing it as not genuine.
Asif said Pakistan would present evidence of Afghan Taliban involvement in recent incidents to mediating countries such as Qatar and Turkiye.
In an interview with Geo News, he said Pakistan would not leave what he called aggression unanswered and would deliver a decisive response.