Police officials said 3 suicide bombers on Monday simultaneously drove their Humvees, seized from the Iraq Army, into a police base in the Tharthar area.
Islamic State suicide attacks targeting a police base have killed at least 30 troops in western Anbar province.
Officials said three suicide bombers drove Humvees seized from the Iraq army into a police base in the Tharthar area. The attacks caused a large explosion in an ammunition depot inside the base.
Police said some Shia militiamen were also stationed in the base. More than 40 troops were wounded in the attack. Hospital officials confirmed the casualties.
Iraqi security forces have been battling Isis militants in Anbar province in an attempt to recapture lost territory including the provincial capital, Ramadi.
On Sunday the Iraqi prime minister, Haider al-Abadi, said Iraqi security forces had lost 2,300 Humvees to Isis when the jihadist group overran the northern city of Mosul in June last year.
CNN: Devastating blast