National Heritage Board: According to the A Country Study: Singapore published by the Federal Research Division of the Library of Congress: After the Japanese military occupied Singapore, they were aware that the local Chinese population was loyal to the Republic of China. Some Chinese had been financing the National Revolutionary Army in the Second Sino-Japanese War through a series of fund-raising propagandist events. The ones who passed the "screening" received a piece of paper bearing the word "examined" or have a square ink mark stamped on their arms or shirts. Those who failed were stamped with triangular marks instead. They were separated from the others and packed into trucks near the centres and sent to the killing sites. Execution There were several sites for the killings, the most notable ones being Changi Beach, Punggol Point and Sentosa (or Pulau Belakang Mati). In a quarterly newsletter, the National Heritage Board published the account of the life story of a survivor named Chia Chew Soo, whose father, uncles, aunts, brothers and sisters were bayoneted one by one by Japanese soldiers in Simpang Village. Extension to Chinese community of Malaya At the behest of Masanobu Tsuji, the Japanese High Command's Chief of Planning and Operations, Sook Ching was extended to the rest of Malaya. However, due to a far wider population distribution across urban centres and vast rural regions, the Chinese population in Malaya was less concentrated and more difficult to survey. Lacking sufficient time and manpower to organise a full "screening", the Japanese opted instead to conduct widespread and indiscriminate massacres of the Chinese population. The primary bulk of the killings were conducted between February to March, and were largely concentrated in the southern states of Malaya, closer to Singapore. Targeted locations Specific incidents were Kota Tinggi, Johore (28 February 1942) – 2,000 killed; Gelang Patah, Johor (4 March) – 300 killed; Benut, Johor (6 March) – number unknown; Johore Bahru, Senai, Kulai, Sedenak, Pulai, Renggam, Kluang, Yong Peng, Batu Pahat, Senggarang, Parit Bakau, and Muar (February–March) – estimated up to 25,000 Chinese were killed in Johor; Tanjung Kling, Malacca (16 March) – 142 killed; Kuala Pilah, Negeri Sembilan (15 March) – 76 killed; Parit Tinggi, Negeri Sembilan (16 March) – more than 100 killed (the entire village); Joo Loong Loong (near the present village of Titi) on 18 March (1474 killed, entire village eliminated by Major Yokokoji Kyomi and his troops);