The center portion of the Subi Reef runway is shown in this Center for Strategic and International Studies (CSIS) Asia Maritime Transparency Initiative January 8, 2016 satellite image released to Reuters on January 15, 2016. REUTERS/CSIS Asia Maritime Transparency Initiative/Digital Globe/Handout via Reuters/File Photo

The center portion of the Subi Reef runway is shown in this Center for Strategic and International Studies (CSIS) Asia Maritime Transparency Initiative January 8, 2016 satellite image released to Reuters on January 15, 2016. REUTERS/CSIS Asia Maritime Transparency Initiative/Digital Globe/Handout via Reuters/File Photo

The center portion of the Subi Reef runway is shown in this Center for Strategic and International Studies (CSIS) Asia Maritime Transparency Initiative January 8, 2016 satellite image released to Reuters on January 15, 2016. REUTERS/CSIS Asia Maritime Transparency Initiative/Digital Globe/Handout via Reuters/File Photo

July 6, 2016 6:04 PM (UTC+8)