Taiwan is building four concrete structures on the disputed ­Taiping Island in the South China Sea, in what might be a facility to increase its military alertness.
The structures, about three to four storeys high, were found to have been built on the coastline of the west side of Taiping surrounding a circular structure still under construction on the shore, ­according to a recent Google Earth map.
Taiping is part of the Spratly Islands and is also claimed by mainland China, the Philippines and Vietnam.
Taiwanese minister visits Taiping to assert claim over disputed South China Sea outpost

The discover of the facilities comes at a sensitive time when both Taiwan and the mainland are protesting against a ruling by an international tribunal over the status of the South China Sea ­archipelagoes.
They were not there on the previous map taken by satellite in January last year.
Taiwanese Defence Minister Feng Shih-kuan on Tuesday ­declined to reveal what exactly the structures were for.
“It is inconvenient for us to ­reveal any military facilities we are installing on Taiping Island and what their purposes are as they are all considered secrets,” Feng told reporters after a legislative session in Taipei. But he assured the public that “Taiping Island has strong defensive capability.

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