The Afghan authorities say they are questioning 10 police guards arrested after the escape of Taleban prisoners in the capital, Kabul.
Pul-e-Charkhi is a huge prison complex built in the 1970s
Seven Taleban prisoners escaped from the country's main high security Pul-e-Charkhi prison on Sunday, prison director Abdul Salam Bakhshi said.
This is the second high-profile jail escape by suspected Al-Qaeda or Taleban militants in Afghanistan.
Four al-Qaeda suspects escaped from US custody at Bagram airbase last July.
'Negligence or treachery'
Mr Bakhshi declined to identify the escapees from Pul-e-Charkhi but said a manhunt was underway to recapture them.
He accused the prison's guards of being involved in the prisoner's breakout plot.
"Their negligence or treachery caused the escape," Mr Bakhshi said.
Pul-e-Charkhi is a huge prison complex built in the 1970s on the outskirts of Kabul. It is used to house common criminals as well as al-Qaeda or Taleban-linked militants.
Correspondents say the vast and rundown jail is notorious for the disappearance and torture of thousands of Afghans during the communist era.
Earlier this month officials said part of the prison would be rebuilt to house most of the Afghan terror suspects currently at the US detention facility at Guantanamo Bay.