At least 3 people were killed and 23 injured in a suicide attack targeting - today, Wednesday - two Pakistani policemen who were accompanying a medical team conducting a polio vaccination campaign in the west of the country.

Azhar Mahasir, a senior police official in the city of Quetta, said that a suicide bomber targeted a police truck that was preparing to accompany the vaccination team, noting that "a policeman, a woman and a child" were killed.

The Pakistani Taliban claimed responsibility for the attack and said in a statement that "a mujahid detonated a car bomb near a customs center in retaliation for the killing of founding member Omar Khaled Khorasani during the truce."

In its statement, the movement vowed that its reprisals would continue.

ending a truce

The Pakistani Taliban, a group separate from the Afghan Taliban, announced earlier this week that it had scrapped a fragile ceasefire deal reached with the government in June and ordered its fighters to launch attacks across the country.

The blast took place in Quetta, the capital of Balochistan province, which borders Afghanistan and Iran, where Islamist militants and separatist rebels are active.

Separately, the army said it killed 10 militants in Baluchistan on Tuesday, but did not say whether they were from the Pakistani Taliban or Baloch separatist fighters.