Islamabad  - A suicide bomber blew himself up Monday at a police post in Pakistan's north-western city of Peshawar, killing at least three people, officials said.

A policeman, who had stopped a motorized rickshaw in which the attacker was travelling, was among the dead, Peshawar police chief Liaquat Ali Khan said.

Five people were wounded in the blast, which took place on a street leading to the main Ring Road in the capital of North-West Frontier Province.

The attack came a day after a suicide bomber killed an anti-Taliban mayor and militia leader and 12 other people at a cattle market on the city's outskirts.

Peshawar has been hit by a string of attacks in recent weeks. More than 110 people were killed when a car bomb hit a crowded market last month.

The strikes were being seen as the Taliban's response to Pakistan's offensive against militants in the South Waziristan tribal district near the Afghan border. (dpa)