Powerful typhoon Neoguri has lashed Japan’s southern Okinawa islands, forcing over half a million people to seek shelter, as the region’s worst storm in years damaged buildings, downed trees and brought air and sea traffic to a halt.

The typhoon packed gusts of up to 252 kilometres per hour on Tuesday with torrential downpours, forcing the cancellation of hundreds of flights as authorities said at least one person was missing and several were injured by the raging storm.

In the capital Naha, traffic lights went off and television footage showed trees split by the force of the storm, signboards flying around and a restaurant destroyed, with the shattered building blocking a street.

Okinawa police said at least three people were injured, including a 83-year-old woman, with public broadcaster NHK putting the number of injured at eight.

Separately, the coastguard said a 62-year-old man was missing after being knocked off his boat near Japan’s mainland, with the weather agency earlier warning that waves could reach as high as 14 metres.

Schools across the sprawling archipelago were also closed while nearly 70,000 Okinawan households had no power, NHK said.

Super typhoon Neoguri. Photo: Getty

Late Monday, the Japan Meteorological Agency issued its highest typhoon alert for Okinawa’s main island, home to around 1.2 million people, as well as the outlying Miyako islands.

Authorities warned there was a risk to life, as well as major property damage from the typhoon and subsequent flooding and landslides.

Neoguri comes less than a year after typhoon Haiyan, packing the strongest winds ever recorded on land, killed or left missing more than 7,300 people as it tore across the central Philippines in November.

The Kadena Air Force Base, the biggest US Air Force base in the Pacific, located on Okinawa’s main island, evacuated some of its aircraft as officers stressed that Neoguri may be deadly.

Authorities have now urged about 590,000 people across Okinawa to take shelter in their homes or evacuate to facilities such as community centres and town halls.