Dmitry Medvedev issued a chilling warning to Europe after a Russian drone hit a block of flats in Romania.

Friday’s incident,which took place in a Nato member nation,sparked widespread condemnation across Europe.

The drone struck an apartment complex in Galati,in the east of the country,leaving two people injured.

Foreign minister Oana Toiu said the incident should trigger Nato Article 4, which gives members powers to call for an emergency meeting.

Medvedev,Russia’s deputy chair of the Security Council and a close associate of president Vladmir Putin,took to X to post: ‘Citizens of EU countries. You should realise your authorities have unilaterally entered into a war with Russia.

The devastating aftermath of the drone strike on a block of flats in Galati,Romania (Picture: AFP)

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Start your day informed with Metro's News Updates newsletter or get Breaking News alerts the moment it happens.‘So be vigilant and don’t be surprised by anything. The peaceful sleep is over.‘But you know who to ask why!’Medvedev,who is also a former president of Russia,is no stranger to sabre rattling.Dmitry Medvedev has been no stranger to sabre rattling since Russia invaded Ukraine in February 2022 (Picture: Reuters)In October,he said Europeans should ‘crap themselves with fear’ over numerous drone sightings above the continent.In May 2023,he said British officials were now legitimate war targets after the then foreign secretary James Cleverly backed Ukraine’s right to strike Russia.And months earlier,he warned there will be nuclear war if Russia loses the conflict.Fire rages in the upper floors of the apartment block in Galati after it was struck by a Russian drone (Picture: AFP)Prime Minister Keir Starmer branded the incident in Romania as a ‘serious violation of Nato airspace’.Nato chief Mark Rutte said: ‘Last night showed yet again that the implications of their illegal war of aggression don’t stop at the border.‘Nato stands ready to defend every inch of allied territory.‘Russia’s reckless behaviour is a danger to us all.’It’s not the first time a Nato member has had its airspace violated by Russia.In September last year,dozens of drones entered Polish airspace,triggering Nato and the Polish Air Force to scramble fighter jets.