The vigil in Mission Bay remembered those lost in the weekend's suicide truck bombing in Baghdad.

About 1000 people gathered in Auckland to remember the victims of the deadliest single attack in Baghdad in years.

A suicide truck bomb blasted through the Karrada neighbourhood's busy shopping district over the weekend, killing 245 people and wounding nearly 200.

Members of Auckland's Iraqi community chanted songs, shared stories and lit candles for the dead in the vigil centred around the fountain at Mission Bay on Wednesday evening.

SUPPLIED About 1000 people gathered at the fountain in Auckland's Mission Bay.

Event co-organiser Khaled Alzawada said he hoped to see New Zealand stand behind victims of all terrorist attacks regardless of their ethnicity, religion or culture.

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He said there should be no bias and people should not be selective in their support for victims of terrorism.

KHALID AL-MOUSILY/REUTERS The blast killed 245 people and wounded nearly 200.

"The vigil is to commemorate the victims of Iraq, proving that us Kiwis will condemn any acts of violence on humanity regardless of race, religion, or culture differences.

​"What we need to understand here is that these acts of violence are cowardly ... and used to divide us," Alzawada said.

"Every Iraqi in or outside the region all have one common intention and that is - to live in peace."

Iraqis of all backgrounds were united against Islamic State and people of Islamic, Christian and other faiths would be present at the vigil, he said.

Among the crowd, self prescribed Iraqi-Kiwi Mohammed Al-Mukhtar said it was a beautiful turnout.

"We all stand here in solidarity to pay our respects our sisters and brothers who lost their lives in this in ongoing war.

"This is a representation of the 28,000 Iraqi Kiwis living in New Zealand and we're unified in denouncing this act of terror and at the root of it all, we're here to say Iraqi blood is worth more than oil."

The Sky Tower was also lit in the main colours of the Iraqi flag - red, white and black - on Wednesday night.

SkyCity Auckland acting general manager Matt Ballesty said it was a sign of support for the Iraqi community which had been "deeply impacted" by the bombing.

"This is a small way that we can express our love and solidarity for this community.

"The Sky Tower can never reflect all the disasters or all the tragedy in the world, nor all the celebrations. But we do our best to help mark key moments in time that the public wish to show their support for and we are pleased to be lighting it this evening whilst the vigil is taking place."

The vigil began at the Mission Bay fountain at 7.30pm.

Donations were being collected for the Red Cross Iraq Crisis Appeal.