Kremlin spokesman Dmitry Peskov said at a press briefing that Russia “does not wish to become involved” in an exchange with the United States over nuclear threats. His comments came after U.S. President Donald Trump announced he was deploying two nuclear-powered submarines toward Russia in response to social media posts by former President Dmitry Medvedev,

The comments come as Trump's deadline for Russia to agree a ceasefire with Ukraine or face sanctions edges closer.