The governor of Iraq's restive Diyala province was wounded in a suicide car bombing Saturday while a provincial elections candidate was killed in another attack, according to reports.

The suicide bomber detonated an explosives-laden vehicle at Governor Omar Al-Humairi's house in Baquba, the capital of Diyala, wounding him, killing two of his guards and injuring six more, a police lieutenant colonel and doctor said.

Humairi, a member of the Iraqi Islamic Party, became governor of Diyala, a province that suffers frequent attacks by militants, in September.

No group has yet claimed responsibility for the attack.

Also on Saturday, Sheikh Hassan Hadi Al-Janabi, a provincial elections candidate in Babil province, was killed along with two of his relatives south of Baghdad by a magnetic "sticky bomb," a police captain and a doctor said.

While violence in Iraq has decreased significantly since its peak in 2006 and 2007, attacks remain commonplace.