Iraqi forces today pushed the Islamic State group from Qayyarah, a northern town considered strategic for any future offensive against the jihadists' last stronghold of Mosul.
Prime Minister Haider al-Abadi hailed the victory as a key step in the fight against IS but hours later suffered yet another political setback when lawmakers impeached his defence minister.
Special forces, backed by US-led coalition air strikes, wrapped up a three-day operation to retake Qayyarah, a town which lies on the banks of the Tigris river.
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The commander said engineering units were now clearing the town, which lies about 60 kilometres south of Mosul, of unexploded ordnance and booby traps.
Residents greeted the security forces under skies blackened by huge fires IS fighters set to nearby oil wells in recent days.
The bodies of suspected IS fighters were strewn across some of the town's streets, especially around its southern entrance, which saw the worst fighting and significant destruction.
Abadi issued a statement hailing what he said was a key step towards reclaiming Mosul, IS's de facto Iraq capital and the country's second city.
"Our heroic forces achieved a big victory, an important step towards the liberation of Mosul," Abadi said.
"I present my congratulations to the Iraqi people for the liberation of the strategic town of Qayyarah and neighbouring areas," he said.
The prime minister's mood was unlikely to have remained upbeat very long however, with one of his key allies losing a no confidence vote by parliament moments later.
The house impeached Defence Minister Khaled al-Obeidi by 142 votes to 102 -- and 18 abstentions -- over corruption allegations.
Obeidi's downfall is the latest development in a bitter feud that erupted earlier this month with rival Sunni politician Salim al-Juburi, who is the parliament speaker.
At a hearing in parliament, Obeidi answered graft accusations against him by saying they were trumped up because he had refused to be part of corrupt deals.
He fought back with his own allegations against Juburi and other lawmakers but the speaker escaped unscathed after an integrity committee dropped the case.
Unity in Iraq's Sunni camp is seen as key to preparing an offensive against Mosul.
The operation against Qayyarah was launched on Tuesday and led by Iraq's elite counter-terrorism service (CTS).
Iraqi forces had already recaptured a nearby air field and Qayyarah is expected to become one of the main launchpads for an assault on Mosul in the coming weeks or months.
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