UAE Minister of State for Foreign Affairs Anwar Gargash later tweeted that there were also $5.5 billion from the UAE in private investments in Iraq "in addition" to his country's pledge but it was not clear if this was a new announcement.
The announcement came at an global donor conference held in Kuwait for the reconstruction of Iraq following the war against ISIS.
Saudi Arabia said it would provide $1.5bn, while Qatar pledged $1bn. Iraq also still owes Kuwait reparations from Saddam's 1990 invasion that sparked the 1991 US -led Gulf War.
"The UN Development Programme's Funding Facility for Stabilisation is working in 25 cities and districts, supporting the return of displaced people to their homes", the UN chief said, adding that 2.5 million remained displaced.
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"The Islamic Republic, as a neighbor and friend of Iraq, has always played an active and effective role in fighting terrorist groups and would like to see this role continuing in the form of reconstruction of Iraq", ISNA quoted Alireza Enayati as saying on Tuesday.
Kuwait will celebrate Liberation Day from Iraq in two weeks and Iraq still pays it reparations.
Meanwhile, rebuilding Iraq after three years of war with Daesh is estimated to cost $88.2 billion, with housing a particularly urgent priority, Iraqi officials say.
The United States under President Donald Trump also seems uninterested in directly investing in Iraq's reconstruction. US government auditors also found massive waste and corruption, fueling suspicions of Western politicians like Trump who want to scale back foreign aid.
United Nations warns conditions not right for Rohingya return to Myanmar
She criticised Burma's leader and Nobel Peace Prize laureate Suu Kyi for her failure to stop the violence against the Rohingyas . More than 23,000 more live along steep, unstable hillsides at risk of crumbling with heavy and continuous rainfall.
The United States also announced that it would be offering a $3 billion credit line but was not providing direct government assistance.
He said tens of billions more were lost indirectly through damage to the wider economy and years of lost growth. Iranian Foreign Minister Mohammad Javad Zarif attended the meeting, but skipped a group photograph held before.
Iraq's Prime Minister Haidar Al Abadi said he was looking forward to "real and strategic" partnerships, as well as collaborations with countries in the region.
United Airlines engine falls apart during flight over Pacific Ocean
A United Airlines flight was forced to make an emergency landing after its engine began to fall apart over the Pacific Ocean. He added,"There was a loud boom and then it was like rattling and the plane was kind of shaking like boom, boom, boom".