It will provide emergency medicine, food and basic shelter to help those affected by the militant insurgency in north Iraq.

The money will also enable aid agencies on the ground to trace and reunite families who have been separated while fleeing violence caused by Islamist militant group ISIS.

At the weekend, an initial £3m of support for Iraq was announced by International Development Secretary Justine Greening.

Greening said: ‘The ongoing violence in Iraq means there are hundreds of thousands of ordinary Iraqi women, men and children suffering terrible hardship on a daily basis.

‘Britain took rapid action last weekend to assist with the humanitarian fallout by providing water, sanitation and medicines and funding UN mobile protection teams for vulnerable women and girls.

‘This further package of support will deliver food, vaccinations and shelter and enable UN agencies to trace and reunite families who have been separated while fleeing from violence.’