The south-western Japanese islands of Okinawa were hit by Typhoon Khanun on Wednesday, grounding flights and forcing local authorities to issue evacuation orders across the area. Khanun is the third typhoon to hit the east Asia region in recent weeks, following Talim and Doksuri, and registered wind speeds above 110mph, according to Japan's meteorological agency. A third of homes in Okinawa are believed to have had their power cut off because of the storm