SINGAPORE - Residents of a Housing Board block of flats in Bukit Merah turned up on Monday (June 28) to take mandatory Covid-19 tests that began at 9am. This came after the Ministry of Health (MOH) said on Sunday night that four residents from three households in Block 103 Henderson Crescent had tested positive for the coronavirus. At 9am, when The Straits Times visited the pavilion at Block 104B where testing was taking place, there were no queues. Two safe distancing ambassadors were on site. Resident Tan Boon Huay, 71, was one of the first to get the PCR (polymerase chain reaction) swab test.