BAGHDAD, Oct. 6 (Xinhua) -- Five people were killed and 20 others wounded in two successive roadside bombing attacks that hit northern Baghdad late on Thursday, an Interior Ministry source said.
The first roadside bomb went off in Autafiya district in northern Baghdad and struck a passing car on Thursday evening. The second one ensued when police and civilians gathered at the blast scene later, the source told Xinhua on condition of anonymity.
The two explosions killed five civilians and wounded 20 others including four policemen, the source added.
It's an old tactic used by insurgents to create second explosions after the first draws security forces and passers-by in a bid to drive up tolls.
Earlier in the evening, another roadside bomb detonated near a school playground in Zaferaniya area in southern Baghdad, wounding five people, the same source told Xinhua.
Violence has been down in Iraq since its peak in 2006 and 2007 when the country was engulfed in sectarian killings, but deadly bombings and shootings still occur on daily basis.