More than three million people have been displaced by the conflict in Iraq since the start of 2014, the UN says, according to BBC News.

A statement by the International Organization for Migration (IOM) said two-thirds were from the provinces of Anbar, Nineveh and Salahuddin.

The regions have been hardest hit by fighting between Islamic State (IS) militants and pro-government forces.

More than 276,000 people were displaced over the past two months amid fighting over Anbar's capital, Ramadi.

The city fell to IS in mid-May after the Iraqi army withdrew.

Since then, pro-government forces led by Shia militias have launched a major operation to regain Ramadi and drive the jihadist group out of Anbar.