A Saudi Foreign Ministry official says the kingdom is investigating the "regrettable and painful incident of Jamal Khashoggi's death" and forming a committee to hold those responsible accountable.
As for his vision for the future of the Middle East, Saudi Crown Prince said: "If we look at the Middle East, the countries that work well are oil-dependent".
"We will prove to the world that the two governments (Saudi and Turkish) are cooperating to punish any criminal, any culprit and at the end, justice will prevail", he said to applause. Yesterday, in an interview with the Wall Street Journal, he stated that the crown prince must assume full responsibility for the murder, as a de facto leader of the country.
The joke took place as the Crown Prince comes under mounting global pressure to come up with answers over the killing of Saudi journalist Jamal Khashoggi in the Saudi consulate in Istanbul on October 2.
The Saudis have presented shifting stories about Khashoggi's fate, initially denying any knowledge before arguing that a group of rogue operators, many of whom belong to the crown prince's inner circle, were responsible for Khashoggi's death. If Khashoggi still refused to return to Saudi Arabia at that point, the team was to leave and a "local collaborator" was to let him go, the source claimed.
Khashoggi, a Saudi journalist who was often critical of Riyadh in his reporting, was killed in the Saudi Consulate in Istanbul earlier this month. Over the past three weeks, Turkish officials have dribbled out details of their investigation to the news media that are meant to bolster their case as well as to force a confession - and possibly other concessions - from the Saudi leadership, analysts said.
Turkish security sources say that when Mr Khashoggi entered the consulate, he was seized by 15 Saudi intelligence operatives who had flown in on two private jets just hours before.
"No one would imagine that in today's world and a new century that we would witness such an organized murder and a system would plan out such a heinous murder", Rouhani said, according to IRNA.
Pompeo, however, also repeated that the "US still considers Saudi Arabia as a "strong" ally".
Saudi officials said the crown prince also called Turkish President Recep Tayyip Erdogan on Wednesday to discuss the investigation.
"The claim that has been made that Mr Khashoggi died in a fight does not amount to a credible explanation so there does remain an urgent need to establish what has happened in relation to this".
It's not clear whether President Donald Trump has broached the topic of the Khashoggi family's travel in his discussions with the Saudi government over Khashoggi's death.
Turkish police gather outside the residence of the Saudi consul General Mohammed al-Otaibi to conduct a search after the disappearance and alleged slaying of writer Jamal Khashoggi, in Istanbul, Oct. 17, 2018.
On Tuesday, the police also searched an abandoned vehicle belonging to the Saudi consulate in an underground auto park in the Sultangazi district of Istanbul.