The statement also cautioned London against any “escalation of the situation,” threatening a “decisive ‘mirror’ response.”

A video posted on the Russian Foreign Ministry’s Telegram channel showed a person who appeared to be Dholakia leaving the ministry building amid chants of “Britain is a terrorist country!” from a crowd of several dozen demonstrators holding signs.

A U.K. Foreign Office spokesperson said the U.K. is “carefully considering” its response.

“This is not the first time the Kremlin has made malicious and baseless accusations against our staff.

“Their targeting of British diplomats comes out of desperation and actions like this undermine the basic conditions required for diplomatic missions to operate.”

This story was updated to include a quote from the U.K. Foreign Office.