A Tan Tock Seng Hospital spokesman told The Straits Times that ten other workers have been warded for observation at the Communicable Disease Centre.

They have been diagnosed with chicken pox and their condition is stable.

Police and medical officers, arriving at Mohd Kamaluddin's room in Tagore Industrial Estate, pronounced him dead at noon.

The 28-year-old is understood to have arrived here two months ago, and stayed in a dormitory with about 400 other workers.