US Central Intelligence Agency Director William Burns met with his Russian counterpart in the Turkish capital, Ankara, on Monday to warn of the consequences of any use of nuclear weapons, which Moscow has threatened to deploy in Ukraine, and to raise the issue of US prisoners in Russian jails, according to US officials.
A White House National Security Council official said the CIA chief met Sergei Naryshkin, head of Russia's SVR foreign intelligence service to discuss "the consequences of the use of nuclear weapons by Russia, and the risks of escalation to strategic stability".
