Two divers die in Okinawa caveTwo Taiwanese divers are reported to have died after entering an underwater cave or cavern at a depth of around 30m in western Japan. According to regional media they were a 28-year-old surnamed Zhang, who had travelled to Okinawa with four friends, and a 24-year-old instructor surnamed Shao. The Manza area is known among scuba divers for its underwater topographical features including caves and caverns, and sometimes strong currents. Another instructor had brought the three remaining divers back to the dive-boat, and at around 3pm the captain notified Nago Coast Guard that two divers were missing. A fortnight earlier a Taiwanese scuba diver in his 50s died following a dive at the Ruifang Bat Cave site near New Taipei City.