Turning to the East China Sea, where rescue crews are racing against time to bring a blaze on an Iranian oil tanker under control. The fire is raging for a second day following a collision with a Hong Kong grain ship.

Concerns are growing that the Sanchi tanker, run by Iran's top oil shipping operator, may explode and sink as the inferno grows. The search team has yet to find any of the missing mariners aboard the tanker. Meanwhile, the Hong Kong freight ship suffered limited damage and the 21 crew members, all Chinese nationals, have been rescued. The two vessels collided about 160 nautical miles off China's coast near Shanghai and the mouth of the Yangtze River Delta on Saturday evening.