Iraq's armed forces have retaken control of the Baiji Oil Refinery in the north of the country in their first major victory against IS fighters.

The army had previously struggled against the militants, losing Iraq's second city of Mosul in just 24 hours.

However the new government has united its forces and received support from coalition airstrikes.

The BBC's Quentin Sommerville was among the first journalists allowed inside the facility, and his convoy came under fire from snipers as it approached.