The Islamic State group infiltrated a town in Iraq's Anbar province with several fighters wearing suicide belts Saturday, in a raid that killed at least five people, security officials said.

The jihadist attackers entered Amriyat al-Fallujah, a government-held town 50 kilometres (30 miles) southwest of Baghdad and a key base for any operation against the IS-controlled city of Fallujah, further north.

"Eight suicide bombers snuck into the city, the security forces succeeded to repel the attack by killing five of them," Major General Ismail al-Mahalawi, who heads Anbar Operations Command, told AFP.

"The other three blew themselves up, which led to the killing of three civilians and two policemen," he said.

A leader of the tribal forces assisting federal forces in Anbar confirmed the death toll and said the situation had been brought back under control.

The government's "war media cell" that provides updates on Iraq's fight against the jihadists posted a video of fighters shooting in the air to celebrate their thwarting of the attack.

A vehicle could be seen dragging the body of an attacker on the road as pro-government fighters cheered.

Amriyat al-Fallujah lies around 20 kilometres (12 miles) south of Fallujah, which is one of the two main remaining cities IS controls in the country.

The other is Mosul, the country's second city, which lies in the north of Iraq and has a much larger population.

Iraqi forces have been making steady progress in Anbar this year, retaking full control of the capital Ramadi and wresting territory back from IS in several parts of the province.

Fallujah has found itself almost completely surrounded, raising concern over the fate of civilians trapped there with dwindling food supplies.

The US-led coalition that backs Iraqi forces with air strikes, training and special forces on the ground, has set Mosul as its priority, hoping to deal a fatal blow to IS' self-proclaimed "caliphate".

Some key players in the mosaic of Iraqi forces involved in the war against IS however favour launching an offensive against Fallujah first.

Source: AFP