The Saudi Crown Prince Mohammed bin Salman (MBS) sent at least 11 messages to Saoud al-Qahtani, his closest adviser who oversaw the team that killed Jamal Khashoggi, in the hours before and after the journalist's death in October, according to a highly classified Central Intelligence Agency assessment seen by a USA newspaper.
MBS is expected to meet with just a few leaders at the summit in Buenos Aires, including Putin.
Vladimir Putin and Saudi Crown Prince Mohammed bin Salman embraced each other like long lost brothers at the G20 summit today.
The US president cancelled a formal sit-down with Mr Putin at the summit in Argentina over Moscow's seizure of Ukrainian vessels.
Mrs May's presence at the talks between world leaders is likely to be dominated by the issue of Brexit and the UK's future global trade as it prepares to leave the European Union in March 2019.
It is also alleged that Prince Mohammed had spoken in August 2017 of "making arrangements" to lure him to a foreign country if he could not be returned to Saudi Arabia.
"He adds: "However, out of respect for the Bush Family and former President George H.W. Bush we will wait until after the funeral to have a press conference".
Davis Cup Final: Croatia 2 - 1 France
The decisive point of Croatia , trying to bring the first racket of the world in the doubles Mate Pavic and Ivan Dodig. France kept their noses in front, though, and the fans ratcheted up the decibel levels as Pavic served at 4-5.
Prime Minister of Japan Shinzo Abe and his wife Akie arrive at Ministro Pistarini International Airport. A White House official said on Friday that the administration was not commenting on intelligence matters.
While UK prime minister Theresa May lauded Bush as "a great statesman and a true friend of our country". Notably, the two leaders have avoided bilateral interaction with US President Donald Trump at the G20.
British officials have accused Putin of ordering the assassination of Sergei Skripal, a former Russian agent living in the United Kingdom who survived the March attack, as did his daughter Julia, who was also poisoned.
On Wednesday, US Secretary of State Mike Pompeo defended Washington's continued strong ties with Riyadh despite Khashoggi's murder, and denied reports linking the Saudi crown prince to the killing.
The 33-year-old prince was seen chatting with US President Donald Trump and his daughter Ivanka and shaking hands with French President Emmanuel Macron at the start of a two-day meeting of the world's top economies in Buenos Aires.
The meeting consisted of two sessions.