Saudi Crown Prince Mohammed bin Salman met Russian President Vladimir Putin on the sidelines of G20 summit in Argentina on Saturday and discussed areas of cooperation including rebalancing the world oil market, Reuters reported citing the Saudi Press Agency.
However, Western leaders appeared to avoid the crown prince during the family photo at the Group of 20 summit in Buenos Aires - after nearly two months of global outrage at the murder of Saudi journalist Jamal Khashoggi.
President Tayyip Erdogan said on Saturday that Turkey's insistence on finding the truth behind the recent killing of journalist Jamal Khashoggi was not aimed at damaging the Saudi royal family. "Unless the perpetrators are found out, the whole world and the Islamic community shall not be satisfied".
The statement came after Pompeo and Defense Secretary Jim Mattis told the Senate that weakening of ties between the United States and Saudi Arabia over the killing would adversely affect the national security of America.
MBS set off last week on his first foreign tour since the grisly murder of Washington Post and MEE columnist Jamal Khashoggi in Saudi Arabia's Istanbul consulate on 2 October.
One alternative to Crown Prince Mohammed that keeps cropping up is King Salman's brother, Prince Ahmed bin Abdulaziz, who has returned to Saudi Arabia from living in self-exile in London. Qahtani served as the royal court adviser but fired shortly after Khashoggi's death.
James Dorsey, a senior fellow at the S. Rajaratnam School of International Studies at Singapore's Nanyang Technological University, has called that the G20 summit the final trial for the crown prince of Saudi Arabia.More news: China to Start Purchasing Ag Products "Immediately" After G20 Meeting with Trump
Khashoggi's killing has put mounting pressure on Riyadh and Prince Mohammed, who Turkish officials - and reportedly the Central Intelligence Agency - have concluded was behind the critic's death.
Prince Mohammed: "It's OK".
"We are going to work together with Saudi Arabia", Putin said in Buenos Aires, ahead of the Vienna talks.
At a news conference in Buenos Aires, PM Trudeau said he had a "frank conversation" with the Saudi Crown Prince at the leaders' dinner on Friday.
After weeks of saying he had left the consulate alive, the Saudi administration later admitted he was killed there, blaming his death on a group of rogue Saudi operatives.
Secretary of Defence Jim Mattis said the question of holding the killers responsible and the strategic importance of the US-Saudi relationship were separate issues.