Two Indonesians have tested positive for novel coronavirus after coming into contact with an infected Japanese national, President Joko Widodo said on Monday.

People with surgical masks look on at station Tanah Abang, following the outbreak of the coronavirus in China, in Jakarta, Indonesia, February 13, 2020. (Photo: CGTN)

A 64-year-old woman and her 31-year-old daughter had become infected after contact with a female Japanese visitor, who lived in Malaysia and had tested positive after returning from a trip to Indonesia, Widodo told reporters at the presidential palace.

"After checks, they were in a sick state. This morning I got a report that the mother and the daughter tested positive for coronavirus," he said. The two patients were being treated at Jakarta's Sulianti Saroso infectious diseases hospital.