Four were located in Johor, three in Selangor, and one each in Kuala Lumpur and Penang. A total of 31 cases have been detected in the Jalan Timah Tiga cluster following screening of an individual who displayed symptoms. The cluster is linked to a factory in the Pasir Gudang Industrial Estate in Johor Baru. Similarly, the Jalan Tanjung Empat cluster and Jalan Desa Tropika cluster – both in Johor Baru – were reported following screenings at factories, with 28 cases and ten cases reported respectively. The Batu Empat cluster in Batu Pahat involves a factory where eight cases were reported while the Perusahaan Jalan Bukit cluster involves a factory in Kajang, Hulu Langat where 262 infections were reported.