According to reports Ghani's interior minister was sent to Islamabad

Afghanistan President Ashraf Ghani on Thursday demanded an explanation from Pakistan's newly sworn-in prime minister Imran Khan on the recent attack on Ghazni city of Afghanistan. While addressing the nation today, Ghani alleged, Taliban insurgents, injured in the encounter with Afghan forces during the attack, were being treated in hospitals in Pakistan.

He also alleged that militants from Pakistan side of the border were also a part of the attack.

Ghani's comments came days after Khan assured assistance to Afghanistan to combat terrorism.

Ghani further countered Pakistan Army Chief General Qamar Javed Bajwa on his assurance of peace."General Bajwa, you signed a document with us and told me repeatedly in our conversations over the phone that when the elections [in Pakistan] are over you will pay attention to it. I need answers now. ... From where they came and why are they receiving treatment in your hospitals?" news agency ANI quoted Ghani as saying.

However, in recent reports, Pakistani Army Chief denied any involvement in the attack.

In a statement, Bajwa said, "COAS reiterates that there is no support to any terrorist activity inside Afghanistan from Pakistan side. The alleged return of injured/dead terrorists from Ghazni is incorrect."

Though, the Pakistani Army Chief also stated that "there are scores of Pakistanis, mostly labourers working in Afghanistan, who periodically fall victim to terrorism acts alongside their Afghan brothers inside Afghanistan."

Earlier this month, More than 100 people were killed and 133 injured as hundreds of Taliban militants launched an attack in Afghanistan's city of Ghazni.

Soon after the attack, the Afghan President had visited the war-affected city to take stock of the situation and ordered an investigation into the attacks.

Imran Khan in his maiden speech as Prime Minister underscored that Islamabad wished to improve its relations with its neighbouring countries, adding that through the National Action Plan (NAP), his government would leave no stone upturned in combating terrorism.