It is reported by RIA Novosti with reference to the broadcast of Channel One.
According to the diplomat, after receiving such a letter, a written appeal was drawn up and sent to the State Department, which contained a demand for an explanation of the current situation.
In addition, Antonov said that at the entrance to the embassy in Washington, Russian diplomatic representatives are handed out cards with FBI phone numbers and offers to communicate with special services, and in newspapers they are urged to "betray their homeland."
“I will emphasize my most severe rejection of such a policy and such an attitude towards Russian diplomats,” the ambassador said.
Earlier, Antonov said that the United States does not plan to close Russian diplomatic missions in the country.