Militants from the Pakistani Taliban have attacked an army-run school in Peshawar, killing 141 people, 132 of them children, the military say.

Officials say the attack in the north-western city is over, with all the attackers killed. Seven militants took part in all, according to the army.

Scores of survivors are being treated in hospitals as frantic parents search for news of their children.

The attack - the Taliban's deadliest in Pakistan - has been widely condemned.

Describing the attack from his hospital bed to the BBC's Shaimaa Khalil, Shahrukh Khan, 17, said a gunman had entered his classroom and opened fire at random.

As he hid under a desk, he saw his friends being shot, one in the head and one in the chest. Two teachers were also killed.

 Victims were carried out of Peshawar hospitals directly in their coffins

 School pupil Mohammad Baqair lost his mother, a teacher, in the attack

A Taliban spokesman told BBC Urdu that the school, which is run by the army, had been targeted in response to military operations.

Hundreds of Taliban fighters are thought to have died in a recent offensive in North Waziristan and the nearby Khyber area.

US President Barack Obama said terrorists had "once again shown their depravity" while UN Secretary General Ban Ki-moon said it was "an act of horror and rank cowardice".

 A total of 114 people were injured

Late on Tuesday, military spokesman Asim Bajwa told reporters in Peshawar that 132 children and nine members of staff had been killed.

All seven of the attackers wore suicide bomb vests, he said. Scores of people were also injured.

It appears the militants scaled walls to get into the school and set off a bomb at the start of the assault.

Children who escaped say the militants then went from one classroom to another, shooting indiscriminately.

One boy told reporters he had been with a group of 10 friends who tried to run away and hide. He was the only one to survive.

Others described seeing pupils lying dead in the corridors. One local woman said her friend's daughter had escaped because her clothing was covered in blood from those around her and she had lain pretending to be dead.

A hospital doctor treating injured children said many had head and chest injuries.

Irshadah Bibi, a woman who lost her 12-year-old son, was seen beating her face in grief, throwing herself against an ambulance.

"O God, why did you snatch away my son?" AFP news agency quoted her as saying.

 Troops sealed off the area around the school

The school is near a military complex in Peshawar. The city, close to the Afghan border, has seen some of the worst of the violence during the Taliban insurgency in recent years.

Many of the students were the children of military personnel. Most of them would have been aged 16 or under.