China is staging a military parade to celebrate its navy's 60th anniversary - and show the world its latest warships.

A least one of the country's nuclear-powered submarines is on display at the naval parade, being held in the port city of Qingdao.

Twenty-one foreign naval vessels from 14 countries are also taking part, including the US, France and Russia.

Military analysts say the event will allow the rest of the world to see how China has developed its naval forces.