The Taliban gunmen who stormed a school in Pakistan killing 148 people, including 132 children, have been identified by the militant group.
The Pakistani Taliban released the pictures as they issued a statement claiming the attack was justified because the Pakistani army had long been killing innocent children and families of their fighters.
Pakistani Taliban spokesman Mohammad Khurasani also vowed more attacks as he warned civilians to detach themselves from all military institutions.
In photos released by the group, between six and seven men carrying guns can be seen pictured in front of a white banner.
In one photo, the militants are standing with a local Taliban leader, AP has reported.
The statement claimed the picture was taken in one of the Pakistani tribal regions.
The Taliban released the images as pictures showing the devastation left behind following the eight hour siege started to emerge today.
Walls riddled with bullet holes, an auditorium floor covered in blood and a burnt out office could be seen in pictures sent from the scene as journalists were allowed inside the building.
Mass funerals were underway today as the death toll rose to 148 after the body of the school's head Tahira Qazi, was found among the debris overnight.
Military spokesman Major General Asim Bajwa said the school principal was inside her office when the attackers made their way into the administration building. He said she locked herself into the bathroom but was killed after a grenade was thrown through a vent and into the room.
As the official three day mourning period started, the prime minister of Pakistan lifted a moratorium on the death penalty in the wake of the massacre.
Taliban gunmen broke into the school before opening fire and killing 132 children, and wounding another 121 along with three staff, in the bloodiest massacre in the country for a number of years.
Maj Gen Bajwa said the attackers made their way into the main auditorium and started shooting randomly at the students, who had gathered for an event.
Students were shot by the gunmen as they tried to flee. Around 100 bodies were later recovered from the auditorium alone, Maj Gen Bajwa said.
There have also been reports that some of the female teachers were burned alive during the attack.
Army commandos fought the Taliban throughout the day until the school was cleared and all the attackers were reported to have been killed, eight hours after the siege had started.
Wounded children taken to hospital told Reuters news agency how most of the victims were killed when gunmen, wearing explosive strapped to their bodies, started to fire indiscriminately on students and their teachers.
Shahrukh Khan, 15, who was shot in both legs but survived by hiding under a bench, said: "One of my teachers was crying, she was shot in the hand and she was crying in pain.
In pictures: Aftermath of Taliban massacre in Peshawar
In pictures: Aftermath of Taliban massacre in Peshawar
1/12 Army Public School
A Pakistani soldier shows the media a burnt classroom at an army-run school a day after an attack by Taliban militants in Peshawar
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A journalist reacts as he visits the Army Public School that was attacked by the Taliban militants in Peshawar
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Pakistani security officials inspect the premises of Army Public School after the attack by the Taliban militants in Peshawar
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Journalists inspect the premises of Army Public School
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A view of a class room of Army Public School
6/12 Army Public School
A view of the blood stained auditorium of Army Public School that was attacked by the Taliban militants in Peshawar
7/12 Army Public School
Pakistani video journalists film inside the auditorium of an Army Public School a day after an attack by the Taliban, in Peshawar, Pakistan
8/12 Army Public School
Chairs are upturned and blood stains the floor at the Army Public School auditorium the day after Taliban gunmen stormed the school in Peshawar
9/12 Army Public School
A pair of glesses lays on the floor of the blood stained auditorium
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Pakistan army soldiers stand outside the auditorium of an Army Public School a day after an attack on the school, in Peshawar
11/12 Army Public School
Pakistani journalists film and photograph inside an auditorium of the Army Public School attacked the day before by Taliban gunmen
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A broken window of a class room of Army Public School
"One terrorist then walked up to her and started shooting her until she stopped making any sound. All around me my friends were lying injured and dead."
Images which show the inside of the building following the eight hour siege have been posted online by BBC News presenter Mishal Husain.
The principal's office where a suicide bomber blew himself up pic.twitter.com/jAYqKWOyjh; Mishal Husain (@MishalHusainBBC) December 17, 2014
Scene of final gun battle in the school pic.twitter.com/M6poske46D; Mishal Husain (@MishalHusainBBC) December 17, 2014
One of the doors leading into the auditorium. Broken spectacles on the floor pic.twitter.com/bh9moaS8fg; Mishal Husain (@MishalHusainBBC) December 17, 2014
The Pakistani Taliban, which is fighting to topple the government and set up an Islamic state, immediately claimed responsibility for the attack.
"We selected the army's school for the attack because the government is targeting our families and females," said Taliban spokesman Muhammad Umar Khorasani. "We want them to feel the pain."
A three-day mourning period has been declared by the government as funerals started to be held for the victims.
Meanwhile, the father of Nobel Peace Prize winning teenager Malala Yousafzai has spoken of the "trauma" his family experienced when they heard the news of the attack on the school yesterday.
In an interview broadcast on BBC Radio 4's Today programme, Ziauddin Yousafzai described how his wife passed out when they heard the news.
He said: "We have gone through this situation on our family level when two years back my daughter was attacked and the whole world just turned into a dark hole for our family.
"I can imagine just how much sadness and terror and horror these families will be passing through now.
"Yesterday my wife had a fit, she went into unconsciousness for 10 to 15 minutes and then we had to recover her."
Associated Press and Reuters contributed to this report