Russia has accused a British diplomat stationed in Moscow of engaging in espionage, prompting a swift rejection from the United Kingdom’s Foreign Office. The accusation was followed by Russia’s announcement on Thursday that the diplomat would be expelled from the country.

According to a report from London citing AFP, the UK Foreign Office dismissed the charge as malicious and entirely unfounded. In its statement, the ministry said that such politically motivated allegations from the Kremlin against British diplomats were not new. It added that London was reviewing possible responses to the expulsion and the accusation.

Observers noted that this incident could further escalate diplomatic tensions between Moscow and London, which have already been strained by previous disputes.