BAGHDAD, March 20: Suspected insurgents marked the third anniversary of the US-led invasion of Iraq on Monday with roadside bombings that killed at least eight policemen, and authorities reported finding 15 more bullet-riddled bodies, one of them a 13-year-old girl, dumped in the capital and in the Tigris River south of Baghdad.

A large explosion also rocked a coffee shop in northern Baghdad, killing at least three civilians and injuring 15, but the cause of the blast was not immediately known.

The violence took up where it left off Sunday when at least 35 people died.

One of the roadside bombings on Monday, just a few hundred yards from an Interior Ministry lockup in central Baghdad, killed at least three Iraqi police commandos and a prisoner, police Lt.Col Falah al-Mohammedawi said. Four commandos were injured in the midday attack.

A second roadside bomb in a farming area in the so-called Triangle of Death south of Baghdad killed four policemen, police Capt Muthana Khalid Ali reported from the area.

The 15 dumped bodies, apparently executed, were the latest gruesome discoveries tied to the underground sectarian war being conducted by Shiite and Sunni Muslims as they settle scores in the chaos that grips the capital.

Since the Feb 22 bombing 887 Iraqis have been killed according to an Associated Press count.

Baghdadis voiced anger on Monday when asked about their lives as the war entered its fourth year.

Authorities have closed the airport in the past citing the need for security during elections.

A car bomb targeting a police checkpoint near a hospital exploded in downtown Baqouba, killing a police officer and injuring another as well as two civilians, police said. Baquoba is 60 kilometers northeast of Baghdad.

Gunmen appeared to hunt down specific individuals as well, killing an Iraqi oil official on his way to work in the northern town of Mosul and opening fire on a former Baghdad mayor as he left his house in the southern neighborhood of Dora.—AP