Several planes have been forced to abort their landings at Fukuoka Airport in Japan, after being hit by strong winds brought by Typhoon Shanshan.

The typhoon, which has weakened to a severe tropical storm, is one of the strongest to hit the country in decades.

More than five million people in the south of the country have been told to evacuate, as authorities issued their highest level alert.

At least four people have been killed, and hundreds of thousands of homes remain without power.

The storm is expected to reach Tokyo this weekend.

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