The Pakistan Taliban chief behind the Peshawar attack that killed 132 pupils has issued a chilling warning that more deaths will follow in another terror "spectacular" in a new video released today.

Maulana Fazlullah of the Tehreek-e-Taliban (TTP), who also ordered the killing of Malala Yousafzai in 2012, defended last month's massacre against a military-run public school in retaliation for the Pakistani Army's killing their people and children.

"Our men attacked the school and killed children of army personnel - not civilians," he said.

"They asked about their identity before killing them.

"These people will always be our target and we will kill them in the streets, markets, everywhere.

"If the army knows our situation - then we also know theirs. Army camps everywhere are our targets."

He added: "Were our children not children?

"Even if the US or Nato comes, we are ready to fight them."

He concluded his rant by saying he and his men were plotting a "spectacular" terror attack, saying: "We will do something which will make you forget the Peshawar attack."

Six militants entered the school, wearing security uniforms, and killed a total of 146 people on 16 December. More than 950 other people including students, were saved by the Pakistani Army.

It was the worst atrocity to hit Pakistan since the Karachi bombing in 2007.

In response to the attack, education campaigner Malala said: "I condemn these atrocious and cowardly acts and stand united with the government and armed forces of Pakistan whose efforts so far to address this horrific event are commendable.

"I, along with millions of others around the world, mourn these children, my brothers and sisters - but we will never be defeated."

The video, which has not yet been verified, was first reported by the Mirror.