China appears to be building a third airstrip in contested territory in the South China Sea, a U.S. expert said Monday, citing satellite photographs taken last week.
The photographs taken for Washington's Center for Strategic and International Studies (CSIS) think tank on Sept. 8 show construction on Mischief Reef, one of several artificial islands China has created in the Spratly archipelago.
The images show a rectangular area with a retaining wall, 3,000 meters (3,280 yards) long, matching similar work by China on two other reefs, Subi and Fiery Cross, said Greg Poling, director of CSIS's Asia Maritime Transparency Initiative (AMTI).
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