The United States has put forward "a series of proposals" to Russia for the release of U.S. basketball star Brittney Griner and former U.S. Marine Paul Whelan, but Moscow has not shown a willingness to engage in productive talks, U.S. national security adviser Jake Sullivan said on Thursday.
Speaking at a White House briefing, Sullivan declined to discuss Griner's condition. Her lawyers said she was transferred last week from a detention center outside Moscow and was on her way to a penal colony to serve her jail sentence.
(Reporting by Trevor Hunnicutt; Writing by Humeyra Pamuk; Editing by Cynthia Osterman)
