Iraqi police say insurgents have shot dead the governor of Baghdad province.

Police say Ali al-Haidari and his bodyguard were killed Tuesday while driving through the Baghdad city neighborhood of Hurriyah.

In an separate attack, a suicide bomber rammed his explosives laden truck into a police post in central Baghdad, killing at least 10 people and wounding more than 50 others.

Insurgents have been increasingly targeting senior Iraqi government officials, police and other security personnel as they press on with a violent campaign to disrupt elections set for January 30.

Monday, at least 18 people - mostly Iraqi police and guardsmen - were killed in a series of ambushes, car bombings, and suicide attacks in Baghdad and several cities and towns to the north.