PESHAWAR, Pakistan — A suicide bomber apparently targeting an anti-Taliban mayor struck a crowded market Sunday in northwest Pakistan, killing the mayor and 11 other people and injuring dozens, police said.

The morning attack took place in the town of Adazai, about 10 miles (16 kilometers) south of the main northwest city of Peshawar. The market was crowded with shoppers and goats being sold to celebrate the upcoming Muslim festival of Eid.

The mayor, Abdul Malik, who was initially reported to have survived, died in the attack, said Sahibzada Anis, the top official in Peshawar.

Malik, who had once been a Taliban supporter, had later switched sides and formed a local militia to help fight the militants.

"Malik had survived several attacks on his life in the recent past, since he turned against the militants," said Anis. "But today the militants have finally killed him."

Eleven bodies and 25 injured people had been rushed to the hospital, police officer Abdul Sattar Khan said. A young girl was among those killed and several of the injured were in critical co