'In this spirit, light must be shed on the disappearance of Saudi journalist Jamal Khashoggi, whose family has lost contact with him since October 2.
President Donald Trump said he's uncertain whether his administration will participate in a Saudi investment conference as CNN said the kingdom is preparing a report saying Jamal Khashoggi died as the result of an interrogation that went wrong.
"We would be very upset and angry if that were the case", he said of Saudi Arabia's potential responsibility.
A section on the glitzy event website with pictures of the speakers has now been taken down.
Security forces began setting up barricades in front of the residence just hours after Otaibi allegedly flew out.
Trump has promised "severe punishment" if Saudi involvement is proven.
Senator Lindsey Graham, a strong Trump ally in Congress, called bin Salman a "wrecking ball" and "toxic" figure.
The Glazers sold two per cent of the club's shares with limited voting rights in August past year, and may be interested in selling more to the Saudis. I think he's on a bad track.
"Of course, it's obvious the whole thing is in the interests of Iran because on the one hand it has caused serious differences between America and Saudi Arabia, and on the other hand, the young prince's reforms in Saudi Arabia have been destroyed in the public opinion of the world", he added.
"We hope this joint investigation will help in removing all speculations", Foreign Minister AH Mahmood Ali said replying to a question on Monday at a briefing ahead of Prime Minister Sheikh Hasina's Saudi visit from Tuesday.
"He had [Mr Khashoggi] murdered in a consulate in Turkey and to expect me to ignore it - I feel used and abused", he said.
They put the president at odds with other key allies and with some leaders in his Republican Party who have condemned the Saudi leadership for what they say is an obvious role in the case. An IMF spokesman said she had postponed her planned trip to the Middle East with a stop in Saudi Arabia.
"This guy has got to go", said Sen.
The newspaper alleged that one of the Saudis torturing Khashoggi replied: "Shut up if you want to live when you return to (Saudi) Arabia".
The diplomatic crisis has deepened in recent days and more details have emerged surrounding Khashoggi's disappearance.
Saudi Arabia has found itself becoming isolated since Khashoggi vanished on its property in Istanbul, with business executives and companies increasingly distancing themselves from the kingdom.
Cavusoglu on Tuesday said no confession from the Saudi side has been made yet regarding the missing journalist. Several Republicans have said arms sales should be curtailed, and Senator Bob Corker of Tennessee, the Republican chairman of the Foreign Relations Committee, said last week that he had warned the Saudis that their relationship with the USA risked collapsing.
A Turkish forensic expert was seen on the roof close to the consulate's flag.
A search was due to be conducted on Tuesday of the consul's residence, some 200 metres away from the consulate.
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