The Russian delegation, led by top senator for foreign affairs Grigory Karasin and adviser to Federal Security Service chief Sergey Beseda, met with the US delegation in Riyadh on Monday. They were expected to discuss the details of a possible resumption of the deal on the safety of navigation in the Black Sea, as earmarked by Russian President Vladimir Putin and US President Donald Trump during their latest phone call.
"They left," the source said.
The US delegation has discussed the Black Sea Ceasefire and the end of strikes on energy infrastructure facilities for 30 days with Russian and Ukrainian delegations at separate meetings in Riyadh, Bloomberg reported on Tuesday, citing a person familiar with the matter.
A new round of talks between the US and Ukrainian delegations in Riyadh is being held on Tuesday, AFP reported, citing Ukrainian sources.
"We are still working with the Americans," the source was quoted as saying.