PESHAWAR--At least 10 people including a local mayor were killed and 20 others wounded Sunday when a suicide bomber blew up a car in Pakistan's northwest Peshawar city, officials and police said.

"The suicide bomber came in a car and exploded it when the mayor was standing with some visitors outside his guesthouse near the local livestock market," district administration chief Sahibzada Anis told AFP.

"The toll is 10 dead and 20 injured."

The bomber targeted Abdul Malik, mayor of Adizai suburb on Peshawar's outskirts, who had raised a militia against Taliban rebels.

"Abdul Malik and a commander of the local anti-Taliban force are also among the dead," Peshawar police chief Liaqat Ali Khan told AFP.

"Malik passed away on the way to hospital."

Pakistan is waging an offensive against insurgents in their northwest mountain hideouts, incurring the wrath of the Tehreek-e-Taliban Pakistan (TTP) group, which has retaliated with a wave of deadly attacks.