"The US authorities, following a now long and deliberate line, continue to obstruct the issuance of visas for Russian representatives traveling to events at the UN headquarters in New York," the Foreign Ministry said in a statement.
The Foreign Ministry recalled that under the Agreement on the deployment of the UN headquarters on American territory, Washington undertook to "provide unhindered conditions for the activities of foreign missions accredited to it."
"The United States is openly abusing its privilege of locating the headquarters of a world organization ... This is gross arbitrariness and an absolutely unacceptable violation of international law, which, of course, cannot and will not remain without due reaction," the department said.
On September 21, Leonid Slutsky, chairman of the State Duma's international affairs committee, said that he was the only one from the Russian delegation who had not yet received a US visa to participate in the UN General Assembly, and the American embassy "did not explain" the reasons for the delay.