Baghdad, Sep 7 (DPA) Nine people were killed and 13 others injured Monday when a suicide bomber detonated a car bomb in the western Iraqi city of Ramadi, police said.

The attack took place near a checkpoint on the highway near the northern approach to the city. Four policemen are among the killed.

Ramadi is 118 km to the west of Baghdad.

A high-ranking police official and one of his sons were killed when a bomb planted under their car exploded in Mosul, the capital of the northern province of Nineveh. Two other of the officer's sons were injured in the blast, police reported.

Also in Mosul, a woman and her grandson were shot dead Sunday evening.

In the northern city of Kirkuk, unknown assailants overnight killed an employee of the state gas company. The victim belonged to the ethnic minority Turkmen, according to police.

In Karbala, south of Baghdad, the body of a murdered traffic policeman was found, the Yaqen news agency reported, while in Baquba north of the capital a civilian was killed by a magnet bomb attached to his motorcycle.