Pakistan's prime minister Nawaz Sharif arrived in Jeddah on Monday for a "consultation" with the Saudi leadership in order to stem a crisis that has seen several Arab countries severing ties with Qatar, officials and local media reported.
He also criticised Saudi Arabia and the UAE, both members of ICAO's governing council, for shutting down the airline's offices.
Speaking after meeting Qatari foreign minister Sheikh Mohammed bin Abdulrahman Al Thani, Mr Johnson said: "I have been in touch with my counterparts across the region about the current tensions with Qatar".
"Qatar is willing to sit and negotiate about whatever is related to Gulf security", he added.
Qatar though has received the support of FIFA president Gianni Infantino, who said on Sunday that the emirate would remain as 2022 hosts, and that football's governing body does "not interfere in geopolitics".
It took years for engineers to discover the field's vast reserves, which shot Qatar to No. 3 in world rankings, behind Russian Federation and Iran, with which it shares the North Field.
The US president was weighing in on an ongoing diplomatic rift between Qatar and Saudi Arabia, Bahrain, the UAE and other Arab countries.
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The president said it appears some countries have already made a decision to hand down the death penalty to Qatar and urged Saudi Arabia to reconsider the harsh steps against the small Gulf country. Some of Qatar's policies, such as its support for the Muslim Brotherhood and Hamas, clash with USA priorities; yet it also hosts a U.S. military base that is crucial to the fight against Islamic State.
Riyadh announced on state television that Qatar would no longer participate in the Saudi-led coalition in Yemen, claiming Doha had helped support the Houthi rebels, despite Qatari soldiers dying in war against them. The Arab countries that have moved against Doha have called on their citizens living in Qatar to return, warning them that they would be stripped of their citizenship if they do not obey.
He called for "dialog based on clear foundations" over the accusations that have been leveled against Qatar.
Saudi Arabia, the UAE, Bahrain and Egypt cut diplomatic and transport ties with Qatar a week ago, accusing it of fomenting regional unrest, supporting terrorism and getting too close to Iran, all of which Doha denies.
Egypt, UAE along with Bahrain last week cut diplomatic ties with Qatar following footsteps of the wealthiest nation of Saudi Arabia and further suspended air, land and sea routes with the Energy-rich Gulf nation.
Meanwhile, Iran's state-run IRNA news agency has said two Iranian navy vessels will stop off in Oman soon.
But Al-Emadi said there is no such crisis.