Iraq’s Prime Minister Nouri Maliki has rejected calls for a national salvation government to help counter the offensive by jihadist-led Sunni rebels.
Such calls represented a “coup against the constitution and an attempt to end the democratic experience”, he warned, according to the BBC.
The US has told Mr Maliki that Iraq needs an administration that represents all its religious and ethnic groups.
Government forces have been unable to recapture the vast swaths of territory seized by the rebels this month.
More than 100 US military advisers assigned to help the Iraqi security forces are to start work on Wednesday.
Meanwhile, US Secretary of State John Kerry has joined NATO leaders in Brussels to discuss the crisis in Iraq.
A United Nations human rights team in Iraq reported that at least 1,075 people were killed in Iraq so far in June, most of them civilians.
Al-Qaeda merges with ISIS at Syria-Iraq border town, NGO says
Al-Qaeda’s Syrian offshoot on Wednesday made an oath of loyalty to the Islamic State of Iraq and Syria at a key town on the Iraqi border, a monitor said, ndtv.com informs.