Russia's Vladimir Putin and Saudi Arabia's Mohammed bin Salman are both in Argentina to attend the G20 summit.

They greeted each other enthusiastically when they met up.

Russian President Vladimir Putin and Saudi Crown Prince Mohammed bin Salman enthusiastically high-fived each other when they met up in Argentina on Friday.

Both leaders are in Buenos Aires to attend the G20 summit on Friday and Saturday.

Their greeting appeared to take place during a large meeting. Other world leaders, such as South Korean President Moon Jae-in and US President Donald Trump, can be seen walking past in the background of the footage.

Here's the greeting in its full glory:

World leaders have widely condemned the crown prince and Saudi Arabia over the killing of the journalist Jamal Khashoggi. Riyadh has long sought to distance the crown prince from the incident, despite increasing evidence directly linking him to it.

Read more: It's business as usual for the Saudi crown prince at the G20 summit despite the brutal killing of Jamal Khashoggi

Putin, however, has refused to publicly condemn the crown prince over Khashoggi's death.

He said last month, according to the Financial Times: "We do not know what happened in reality. So why should we undertake any steps to deteriorate our relations with Saudi Arabia?"

The Russian president also deflected blame to the US, saying: "As far as I know, the journalist who went missing used to live in the USA ... In this regard, the US has a certain responsibility."

Russia and Saudi Arabia have close relations over their joint deal to regulate oil supplies.