(Changes toll, adds Anbar tribal leader shot)

BAGHDAD, Oct 16 (Reuters) - Vehicle bombs targeting an Iraqi army patrol in Baghdad and a police station in northern Iraq on Tuesday killed at least 11 people and wounded 105, police said.

While levels of violence in parts of Baghdad and surrounding areas have declined since the U.S. military sent an extra 30,000 troops this year to quell violence, there has been a spate of car bomb attacks on Iraqi police and security forces.

Al Qaeda has vowed to target them and tribal leaders who have begun working with U.S. forces to drive the Sunni Islamist militants out of their communities.

Three soldiers and three civilians died when a car bomb parked in central Baghdad exploded near an Iraqi army patrol. Five soldiers and 20 civilians were wounded.

A truck bomb in the northern city of Mosul destroyed a police station, killing four policemen, a woman and wounding 80 people, police said.

A member of the "Awakening Council" of tribal leaders that turned against al Qaeda in the western Anbar province was also killed on Tuesday.

Police said at least seven gunmen broke into the home of Sheikh Saleh Fezea Shneitar near Falluja, west of the capital. They shot dead the tribal leader along with his son and nephew.

In the eastern Baghdad district of Zayouna, gunmen attacked a police checkpoint, killing three policemen and wounding two. A roadside bomb killed one civilian and wounded two in the central Baghdad district of Karrada, police said.

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