MOSCOW: The US and Russia are in special channel discussions regarding the release of basketball player Brittany Griner and former Marine Paul Whelan, according to a senior US diplomat cited by the RIA Novosti news agency on Monday. Also Read: Former Pakistani Prime Minister Khan is "running out of options" as his party prepares to quit all assemblies The US Embassy in Russia's charge d'affaires, Elizabeth Rudd, was quoted as saying that the US had submitted a serious proposal for consideration, but had not received a "serious response" from Russia. Russia and the United States are discussing a deal in which Griner, who is facing nine years in prison in Russia on drug charges, would be returned to the United States in exchange for convicted Russian arms smuggler Viktor Bout. Also Read: Tigray, Ethiopia, reported kidnappings and looting following the ceasefire Despite increased tension between the two countries, no agreement could be reached. Also Read: Officials' hotel in Mogadishu is attacked by militants