Through a steady stream of leaks to Turkish and foreign media, Turkish officials have mounted a compelling case that the Saudi agents planned to kill Khashoggi, dismember him and dispose of his remains.
Trump described the plan to kill Khashoggi in the Saudi diplomatic mission in Istanbul, as well as the contrasting cover-up stories after it, as a "bad deal" and "the worst cover-up ever".
Al-Mojeb did not say whether Saudi investigators had reached the same conclusion. It's the latest change in the narrative over Khashoggi's death-reversing an earlier Saudi statement that Khashoggi died after a "fistfight" inside the consulate.
News of the call appeared to calm growing speculation that Turkey was edging toward implicating the crown prince, whose ambitions for a modernized Saudi Arabia have been undermined by his penchant for making enemies at home and overseas.
U.S. President Donald Trump, the kingdom's staunchest Western ally, was quoted by the Wall Street Journal as saying Prince Mohammed bore ultimate responsibility for the operation that led to Khashoggi's death.
The Turkish government has so far declined to elaborate on the alleged audio recordings, but on Wednesday, the Washington Post reported that CIA Director Gina Haspel had listened to them.
Saudi journalist Jamal Khashoggi in May 2010.
During the vigil, a friend of Khashoggi and advisor to Turkish President Recep Tayyip Erdogan, Yasin Aktay, said that "no one can sweep this affair under the rug".
"Even if US President Trump saves [Mohammed bin] Salman, in the eyes of the world, he is a questionable person with Khashoggi's blood on his hands", Cevik wrote.
Also Thursday, the European Union issued a fresh condemnation of Khashoggi's killing and reiterated its skepticism that it could have been carried out without Mohammed's knowledge.
The Saudi stock market surged Thursday a day after Crown Prince Mohammed bin Salman made his first public comments on the murder of Jamal Khashoggi and vowed to press on with reforms. US intelligence officials and lawmakers as well as the European Union have said that an operation targeting a critic of the royal court in a foreign country is unlikely to have been ordered without the knowledge of senior Saudi officials. He told reporters on Thursday that he wanted to know where Khashoggi's body is.
After the journalist disappeared, Saudi Arabia initially insisted Khashoggi had walked out of the consulate after visiting the building.
The United States has already taken some steps toward punishing the suspects detained or fired by Saudi Arabia, revoking their visas.More news: Trump praises Montana congressman who assaulted reporter: 'Never wrestle him'