from article: "Jonathan Beale, Defence Correspondent

I am on board the warship, in the Black Sea.

The crew were already at action stations as they approached the southern tip of Russian occupied Crimea. Weapons systems on board the Royal Navy destroyer had already been loaded.

This would be a deliberate move to make a point to Russia. HMS Defender was going to sail within the 12 mile (19km) limit of Crimea's territorial waters. The captain insisted he was only seeking safe passage thorough an internationally recognised shipping lane."