Why did a Russian frigate fire warning shots and what can the UK do about it? (opens in new tab)

Russia may have violated UN convention on sea law but says it took ‘all measures to prevent the incident’The Ministry of Defence has said it is investigating the events that led to a Russian warship in the Channel. It is probable that the inquiry will extend to questioning the owners of the yacht but the laws of the sea will sharply limit its scope when it comes to the Russian vessel.