About 3,000 militia members in Iraq have begun moving against Islamic State militants after the fall of the city of Ramadi last week, officials say.

The pro-government forces say they have retaken Husayba, east of Ramadi.

Ramadi - the capital of Anbar province - is only 110km (70 miles) west of Baghdad. Its fall was seen as a major embarrassment for the government.

About 500 people died in the city, and more than 40,000 - a third of the population - have fled.

BBC