Most of the victims died when a suicide bomber crashed his car into an Iraqi police patrol in the city centre on April 26.

Another bomber blew up his car next to a military checkpoint, a third attacker managed to detonate a fuel tanker and yet another car bomb was used later in a fourth attack.

The US military says Mosul is al-Qaeda’s last urban stronghold in Iraq.

Being Iraq's third largest city, Mosul has recently been the focus of a renewed security drive as US and Iraqi forces try to target al-Qaeda fighters.

The US military says that militants have regrouped in Mosul since being forced out of Baghdad and western Iraq.