UAE Wants International Monitoring of Qatar

The report mentioned that it was believed Saudi Arabia or UAE might have paid for the hacking.

Anwar Gargash, the UAE's minister of state for foreign affairs, also claimed the story was false.

The UAE arranged for Qatari government social media and news sites to be hacked in late May in order to post fiery but false quotes linked to Qatar's emir, prompting a diplomatic crisis, The Washington Postreported on Sunday, citing United States intelligence officials.

The story - in which Qatar's emir Sheikh Tamim Bin Hamad al-Thani praises Iran - was a pretext for the current crisis between Qatar and several Arab countries, the Post reports. However, the remarks were reported across the region and caused a stir.

Saudi Arabia and its allies imposed sanctions on Doha on June 5, including closing its only land border, denying Qatar access to their airspace and ordering their citizens back from the emirate.

Speaking at the Chatham House worldwide affairs think tank in London, Gargash repeated claims - denied by Qatar - that the country funds extremists.

However, the officials are unclear whether the UAE carried out the hacks itself or contracted to have them done.

The report said that information accessed by USA intelligence officials has confirmed that senior members of the UAE government had discussed the plan and its implementation. A report in the Guardian on June 7 said that an FBI investigation had found that Russian hackers were responsible for sending out fake messages from the Qatari government.

The UAE embassy in Washington on Monday sent a series of tweets quoting its ambassador, Yousef Al Otaiba, denying the Washington Post report, which was published Sunday and, according to the paper, was based on information provided by unnamed United States intelligence officials.

It continued: "What is true is Qatar's behaviour". Funding, supporting, and enabling extremists from the Taliban to Hamas and Gaddafi. Inciting violence, encouraging radicalization, and undermining the stability of its neighbors.

They say Qatar has supported many radical groups. But it has denied aiding jihadist groups linked to al-Qaeda or so-called Islamic State (IS).

US Secretary of State Rex Tillerson visited Qatar, Saudi Arabia and Kuwait last week in response to the impasse and said that direct talks could take place between the feuding nations but warned that resolving the dispute "may take quite a while".