MOSUL: A suicide bomber killed 12 people at the funeral for a member of a tiny Iraqi minority group Saturday, the latest in a months-long wave of bloodshed plaguing the country.

The attack was one of several to strike predominantly Sunni Arab northern Iraq, beset by growing instability in recent months as anti-government protests have combined with spillover from neighbouring Syria's years-long civil war to give militant groups increased room to manoeuvre.

The bomber blew himself in the town of Baashiqah, just outside the main northern city of Mosul, killing 12 people and wounding 35, according to Sheeth Abed, a doctor at the city's hospital.

He targeted the funeral for a member of the Shabak minority who had died of natural causes, officials said.

The 30,000-strong Shabak community mostly lives near the Turkish border.

They speak a distinct language and largely follow a faith that is a blend of Shia Islam and local beliefs, and are frequently targeted in attacks by Sunni militants linked to al Qaeda.

Also on Saturday, two other attacks in Nineveh province, of which Mosul is the capital, left a policeman dead and three others wounded.

An explosion in Dujail, which also lies north of Baghdad, killed two others.

The attacks come amid a surge in nationwide violence that has left more than 4,000 people dead so far this year and sparked concerns Iraq is slipping back into the all-out sectarian war that plagued it in 2006 and 2007.

Authorities have sought to combat the bloodshed, at its worth level since 2008, with a range of anti-militant operations and tight traffic rules in the capital, but Iraq has continued to suffer deadly attacks.

Authorities insist a weeks-long campaign targeting militants is yielding results, but the government has faced criticism for not doing more to defuse anger in the Sunni Arab community over alleged ill-treatment at the hands of the Shia-led authorities.

Analysts and diplomats say militant groups exploit that on the ground to recruit and carry out attacks.