The Iraqi government is claiming it is in full control of the Baiji oil refinery, despite conflicting reports from Sunni rebels.
The rebels are promising to take the whole facility, which has been at the centre of intense fighting.
Nouri al-Maliki, Iraq’s prime minister, has faced international criticism for his handling of the unrest, and despite calls for him to resign, has refused to bow to pressure.
Since the uprising began earlier this month, more than a thousand people have been killed and nearly 500,000 displaced.
And as Imran Khan reports from Baghdad, the country’s oil industry is in turmoil.