Noticeably absent from discussions was the Saudi crown prince, Mohammed bin Salman, about whom Khashoggi wrote critically for the Washington Post and whose rise to power prompted the writer to go into a self-imposed exile in the US. Mr Trump says "rogue killers" could be responsible for his disappearance because the Saudi ruler King Salman has denied knowing what happened.
Saudi Arabia's government is discussing a plan to admit that missing journalist Jamal Khashoggi was killed after entering the Saudi consulate in Istanbul, three people with knowledge of the situation tell NBC News.
"Been hearing the ridiculous "rogue killers" theory was where the Saudis would go with this", Sen.
Khashoggi, a USA resident and leading critic of the Saudi crown prince, vanished after entering the consulate on October 2.
The Saudi Public Investment Fund negotiated a minority stake in Endeavor worth 345 million euros in March as powerful Crown Prince Mohammed bin Salman pushed for a foothold in the entertainment industry.
However, unconfirmed reports in the U.S. media suggest Saudi Arabia is preparing to admit that Mr Khashoggi died as a result of an interrogation that went wrong and that the original intention had been to abduct him.
"It has been 13 days since the event, so surely proving some of the evidence might be hard, but we believe we will obtain evidence", the Turkish official said.
The search came after Turkish President Recep Tayyip Erdogan and King Salman also had their first telephone talks since the controversy erupted, in what appeared to be a conciliatory conversation according to official readouts.More news: IMF's Lagarde warns trade, currency wars could be detrimental for growth
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The issue has strained Saudi Arabia's ties with its closest Western allies. "But we want to find out what happened and he's got instructions to find out what happened".
Missing journalist Jamal Khashoggi's Turkish fiancee Hatice Cengiz wait in front of the Saudi Arabian consulate in Istanbul on October 3, 2018.
The Saudi government could not immediately be reached for comment on the CNN report.
"If they don't buy it from us, they're going to buy it from Russian Federation or they're going to buy it from China", he said.
Meanwhile, the United Nations human rights chief has called for Saudi diplomatic immunity at "relevant premises" to be waived "immediately" for anyone who could be involved in Mr Khashoggi's disappearance.
The Saudi riyal, rebounded early after falling to its lowest in two years over fears that foreign investment could shrink.
Khashoggi, a familiar face on Arab talk shows, moved to the United States a year ago fearing retribution for his criticism of Prince Mohammed, who has cracked down on dissent with arrests. Saudi stock index was down 3 percent in early Tuesday trade before it recouped some losses for a decline of 0.5 percent by 0949 GMT.
Khashoggi moved to Washington after Crown Prince Mohammed began a kingdomwide anti-corruption crackdown, including efforts to silence dissidents.
Foreign minister Khalid bin Ahmed Al Khalifa tweeted two hashtags calling for a boycott of Uber in Bahrain and Saudi Arabia, as well as a broader hashtag urging followers to "boycott anyone who boycotts Saudi Arabia". Some U.S. companies that had planned to attend the conference, including The New York Times, have pulled out since Khashoggi's disappearance.