'FSB accompanying coast guard ship warned the Ukrainian vessel of the need to comply with Russian legislation (in terms of filing the necessary applications for passage through the Kerch Strait). An answer was received that it did not plan to pass through'' panic about nothing

Around 80 civilian vessels are now stuck waiting in the Kerch Strait - according marinetraffic portal ignoring requirements to change course in what's been called a 'threat' by the Russian Security Services