The UK has summoned the Russian ambassador following the country's 'unprecedented violation' of Nato airspace.
Andrey Kelin is being brought in for a dressing down by the Foreign Office after 'incursions' into Poland and Romania in recent days.
War planes were scrambled in Romania and Poland after Putin flew a military drone over Romanian territory yesterday.
Sirens sounded and an air raid threat was declared as Warsaw announced Polish and allied fighter jets were operating due to Russian drones buzzing border regions of Ukraine.
This followed last week's major incursion of Polish airspace by dozens of Russian drones.
