Russia denies reports of hacking Qatar's state news agency

Qatar's sudden isolation has led to the country holding talks with Turkey, Iran and others to secure food and water supplies.

Several Arab countries have broken diplomatic ties with Qatar because of its "embrace of various terrorist and sectarian groups aimed at destabilising the region", including the Muslim Brotherhood, al-Qaida, Islamic State and groups supported by Iran. Qatar denies the accusations.

It is the worst split between powerful Arab states in decades.

Gabriel warned against completely isolating Qatar and said the move is an attack on the Persian Gulf state's very existence.

What's behind the diplomatic breakdown in the Gulf?

The Arab countries have blocked Qatari vessels from entering their airspace, as well as using their seaports as Saudi Arabia has closed off its land border.

Tensions between Qatar and Saudi Arabia - a Middle East heavyweight - bubbled to the surface two weeks ago when Qatar said its state-run news agency and its Twitter account were hacked to publish a fake story claiming the emir, Sheikh Tamim bin Hamad Al Thani, had called Iran "a regional and Islamic power that can not be ignored". "We have strategic reserves in place since 2014, we don't see that life will be affected". Trump's visit, CBS News' Margaret Brennan reported.

Mehmet Buyukeksi, chairman of the Turkish Exporters Assembly (TIM), told Reuters that exporters stood ready to fill the gap after the United Arab Emirates (UAE) and Saudi Arabia cut trade ties with Qatar. Qatar is a key USA ally and hosts Washington's biggest base in the region-the Al Udeid Air Base.

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"On the public level, social media has been showing great support to Qatar with the hastag "Qatar is not alone", she said.

Pro-Qatar protests are also planned in Istanbul for Wednesday night.

Jubeir said that "for many years Qatar has taken steps to support certain organisations".

'We have moved from breaking diplomatic relations to a comprehensive blockade of worldwide conventions and human rights, not only for Qataris but also for citizens of the Gulf Cooperation Council (GCC) countries, ' he said in press conference.

Turkey and Qatar have developed close ties over the years and reached an agreement in 2014 for the construction of a Turkish base there.

But a second source said an important moment came last Saturday when Saudi King Salman and Sheikh Mohammed bin Zayed al-Nahyan, Crown Prince of Abu Dhabi, met for iftar in Jeddah.

Iran shares access with Qatar to the world's biggest natural gas field.

  • Adam Floyd