MOSUL, Sept 29: Six Iraqis were killed in violence across Iraq, while 10 US soldiers were wounded in attacks in the country's north, security officials said on Wednesday.

Four US soldiers were wounded when a roadside bomb blew up as their convoy passed near the village Riyadh at 1 pm (1000 GMT), 40 kilometres outside Kirkuk, the US military said in a statement

In Mosul, a car bomb exploded late on Tuesday as a US convoy drove near the University of Mosul, wounding six US soldiers, said American military spokesman Lieutenant Colonel Paul Hastings.

Five soldiers have since returned to duty, while one was still in hospital, he added. Two Iraqi security guards were also wounded, said the university's security chief Lieutenant Colonel Zulfikar Omar Salah.

Also in Mosul an Iraqi NGO worker was assassinated overnight, police said. "Mohammed Hoshyar, head of World Vision in the Nineveh province, was killed by unknown gunmen," police Lieutenant Colonel Hashem Ahmed Shehab said.

A Shia political official, his son and driver were assassinated in the northeastern city of Baquba on Wednesday afternoon when six gunmen cut off their car and shot them point blank, the slain man's brother said.

Abdel Ghani Mijbas, a member of the Supreme Council for the Islamic Revolution in Iraq was traveling with his teenage son at 2:00 pm (1100 GMT) when two vehicles gave chase and lobbed grenades at their vehicle, his brother, Nadem Mijbas, told reporters.

The six gunmen stepped out of their cars and shot the pair and their driver dead. Abdel Ghani headed the local branch of SCIRI's science and culture committee. Three civilians, including Abdul Ghani's nephew, was wounded in the attack.

The US military, meanwhile, said it shot dead an Iraqi civilian early Wednesday after he failed to stop at a checkpoint near the restive city of Baquba, north of Baghdad.

In Baghdad, one person was killed and another wounded as they were planting a bomb in Aazamiyah, a witness said. Huge explosions rattled central Baghdad's Haifa street district on Wednesday as members of the Iraqi national guard, backed by US forces, combed the area for weapons, the interior ministry said. A Ukrainian officer serving with the US-led force was killed and two of his companions were injured in an accident. -AFP