News sources reported that the death toll from an attack on the Salahuddin province headquarters north of Baghdad rose to 58 killed, 15 of them hostages. Nearly 100 were wounded. Security forces stormed the provincial council building in Tikrit on Tuesday after an hours-long shootout with gunmen.
The gunmen, wearing military uniforms and suicide vests, had stormed into the provincial council building in the city, shortly after a suicide bomber detonated his payload and cleared the way, according to security officials.
A car bomb went off afterwards as police reinforcements were arriving, they said.
Hospital sources said they had received the bodies of six attackers. They said two showed they had died after detonating their suicide vests, and four died by shots fired by security forces.
The attack began before 1 pm (1000 GMT) and lasted for more than four hours. Shortly afterwards, a curfew was imposed in Tikrit, capital of the Salaheddin province.
Iraqi officials said Tuesday's attack bore the hallmark of Iraq's Al-Qaeda affiliate.