Jamal Khashoggi disappeared after visiting the Saudi consulate in Istanbul on October 2 and Turkish authorities have speculated that he was either killed or kidnapped there, while Saudi Arabia has denied the accusations, reports Efe news. The UK's Foreign Minister, Jeremy Hunt, had also said that they would have to "think about the appropriate way to react" if Saudi Arabia is found guilty in Khashoggi's disappearance.
US senators called for reactions ranging from boycotting an upcoming economic summit in Riyadh to ending support for Saudi military operations in Yemen.
"If, as they say, this awful murder didn't happen, then where is Jamal Khashoggi?"
According to a prince belonging to Saudi Royal family, 5 members of the Royal family who raised voice against the disappearance of Jamal Khashoggi have been put in jail.
The Saudi foreign ministry said King Salman affirmed his country's "solid" relations with Turkey in the phone call with Erdogan, stressing that no one could undermine their relationship.
JP Morgan CEO James Dimon and Ford chairman Bill Ford said on Sunday they would also not attend.
"None of us know what happened, but we are all extremely concerned about the stories that have emerged, and the country that can help us get to the bottom of this is Saudi Arabia", he added.
Prince Harry & Meghan Markle Arrive in Sydney for Royal Tour!
They then head off to Taronga Zoo to hear about work against the illegal wildlife trade and visit the Sydney Opera House. It is a low-key arrival with a large contingent of security and media in place to meet them.
The Washington Post reported in recent days that the Turkish government informed US officials it was in possession of video recordings that prove Khashoggi was killed inside the consulate, but have not made them public.
Oil futures rose on Monday on concerns about supply, while stocks in Saudi Arabia fell sharply on Sunday.
On Sunday, the Saudi stock market dropped as much as 7% following President Trump's threats of "severe punishment", indicating that investors are spooked. "The question here is specifically whether our relationship with Saudi Arabia needs to be completely revised, including arms sales if in fact they carried out something like what they are accused of at this moment".
"It's clear, we can not have an ally who murders, in cold blood, in their own consulate, a critic", Sanders said on CNN's State of the Union Sunday morning. Meanwhile, Turkey has said it will search the Saudi Consulate for evidence, but that has yet to happen.
He said any response to Khashoggi's killing "needs to be strong, not symbolic", including the possibility of cutting off USA weapons sales to Riyadh, or it would undermine the U.S.'s moral standing in the world.