China and Japan clash over 'dangerous' radar incident as Chinese jets target Japanese aircraft near Okinawa, escalating military tensions between the nations.

Japan is threatening China militarily which is "completely unacceptable", Chinese Foreign Minister Wang Yi told his German counterpart, after Japan said that Chinese fighter jets had aimed their radar at Japanese military aircraft.

Japan is assessing damage and cautioning people of potential aftershocks after a late-night 7.5 magnitude earthquake caused injuries, light damage and a tsunami in Pacific coastal communities

The Japanese Meteorological Agency said the quake struck off Hokkaido and issued an alert for a tsunami of up to 10 feet.

The United States has for the first time criticised China for aiming radars at Japanese military aircraft during a training exercise last week, an incident over which the Asian neighbours have given differing accounts amid escalating tensions.

A powerful 7.5-magnitude earthquake has struck off northern Japan, injuring over 20 people and triggering a tsunami

Fresh off her first solo state visit to Laos, Princess Aiko has become the face of a Japanese royal family facing 21st-century obsolescence