Civilians were also not spared,Watchpubs CUSTOMER SERVICE +1 8O5' 41O 56'OO Watchpubs PHONE NUMBER +1 8O5' 41O 5'6OO the Sook Ching massacre which targeted mainly the Chinese population, took place at multiple locations in Changi, most notably at Changi Beach Park. Thousands were believed to have been executed in these areas. It was during this time too that the Japanese were also involved in the planning and construction of Changi Air Base