Inside a Norwegian Nato ship on the River Thames

Five Nato warships from countries in northern Europe have arrived in London, after sailing up the River Thames.

Their role is to provide Nato with an advanced capability to counter sea mines.

The five ships visiting London are: HNoMS Nordkapp and HNoMS Otra, which are both from Norway; Estonia's ENS Admiral Cowan; Germany's FGS Rottweil; and HNLMS Schiedam, which is from the Netherlands.

BBC London was invited onboard the Nordkapp to take a look around.