© ReutersA locksmith changes the gate lock at the former residence of the Russian consul general in Seattle Washington, US April 25, 2018.
The ministry expressed "protest at the continued violation of international law by the US with regard to" Russian diplomatic missions and consulates in the US, according to a statement on its website.
The complaint concerns Russian diplomatic properties in Washington DC, San Francisco, and Seattle, as well as in the states of Maryland and New York. Moscow said that the "negative consequences" undermine not only US-Russian relations, but also "the principles of the sovereignty of states and international cooperation."
Moscow said that it has a right to take "additional countermeasures" against US diplomatic property on Russian soil if the US "continues violations" against its facilities.
In a separate statement, also released on Friday, the Foreign Ministry urged the UN Secretary-General to look into the matter. The relevant letter to Antonio Guterres was sent on May 18, the ministry said.
The diplomatic spat between Moscow and Washington dates back to December 2016, when on New Year's Eve, the outgoing Obama administration expelled Russian diplomats and closed two Russian diplomatic compounds in New York and Maryland.
Russia did not immediately retaliate as the new Trump administration was taking office. However, the downward trend in US-Russia ties persisted and, in the summer of 2017, Washington slapped a new round of sanctions on Moscow, which retaliated by ordering the US diplomatic mission to downsize.
In response, the US took new hostile action, shutting the Russian Consulate-General in San Francisco, as well as the country's trade missions in Washington and New York.
In May this year, US authorities removed the Russian flag from the diplomatic compound in Seattle. The Russian embassy condemned this "unacceptable treatment" of the national symbol.
Comment: The Russian government (and by now half the world) understands that the US government could not give a hoot about international law - unless, of course, it's being broken by a target of Empire. But the more people that understand this, and hear it, the better grasp they'll have of what the US is all about at this moment in history.