US Ambassador to Moscow John Sullivan arrived at the Russian Foreign Ministry with a written response to demands for security guarantees, TASS reported. His car pulled up to the building around 7:30 p.m.
Sullivan delivered to the Foreign Ministry responses to Russian demands from the United States and NATO. Earlier, Secretary of State Anthony Blinken reported Washington's intention to deliver them to Moscow on Wednesday.
Russia sent a draft treaty on security guarantees in Europe to the US in mid-December. One of the main demands is to prevent NATO from expanding eastward. In addition, Russia insists on ending the alliance's military cooperation with post-Soviet states and eliminating nuclear weapons from Europe.