Updated

Pakistan's interior minister says authorities have made arrests in the case of the Taliban school attack that killed 148 in the northwestern city of Peshawar.

Chaudhry Nisar Ali Khan says Sunday the authorities have picked up several people suspected of involvement in the attack, although he did not disclose their identities or say how many they were.

Seven Taliban gunmen wearing explosives belts stunned the world on Tuesday by storming into the military run school and slaughtering 148 people, including 132 students.

The group claims it fights to establish a ruling system based on its own harsh brand of Islam. It has killed thousands over nearly a decade.

The Taliban say they attacked the school in revenge for an army operation against them in North Waziristan, launched in mid-June.