At least six people, including three security forces, have been killed in the new wave of bomb attacks in Iraq, interior ministry sources say.

In the first incident, three policemen lost their lives on Wednesday when a roadside bomb exploded in the Hamreen region of Baquba province, AFP reported.

An interior ministry source says another bomb went off near the Sunni Endowment’s headquarters in Baghdad and killed two guards and left four other people injured.

The source added that a magnetic “sticky bomb” targeted a car and claimed a live, wounding four other people.

The attacks came a day after seven people have been killed by bomb blasts in the Iraqi capital and the country’s eastern province of Diyala.

Seven years after US raid on Iraq, casualties from bomb attacks still remain part of daily life in the war-torn country.

The classified documents released by the whistleblower website Wikileaks have shed light on a spate of crimes and offences committed in Iraq over the past few years, including assassinations and murders.

The US invaded Iraq in 2003 under the pretext of having weapons of mass destruction, but such weapons were never found.