Six Iraqi security personnel and three civilians were killed in an ambush Saturday carried out by the Islamic State group north of Baghdad, police and a local official said.
A police source said a roadside bomb hit a car and that jihadists opened fire on a rescue team of policemen and state-aligned paramilitary forces when they arrived at the scene, about 200 kilometres (120 miles) from the capital.
Four members of the Hashed al-Shaabi and two policemen died along with three civilians, Mohammed Zidane, the mayor of Zouiya, 50 kilometres from the city of Tikrit, told AFP.
He updated an earlier civilian death toll of two.
There was no immediate word of casualties among the assailants, but Zidane said those killed among the Hashed, a coalition of mainly Shiite forces, were Sunni tribesmen.
Both the mayor and police said the ambush was the work of Islamic State (IS) jihadists, although no immediate claim of responsibility was issued.
Eleven people were killed on November 8 in an IS attack on a lookout post at Al-Radwaniyah, near Baghdad airport on the outskirts of the capital.
IS swept across a third of Iraq in 2014, seizing major cities across the north and west and reaching the suburbs of the capital.