Jakarta.  The Foreign Affairs Ministry on Saturday raised its travel alert for Singapore to level yellow, urging Indonesian citizens to take extra precautions when they visit the city-state. The new warning was issued after Singapore's Ministry of Health on Friday upgraded its disease outbreak response system condition, or Dorscon, to Orange, one level below top alert, as the coronavirus outbreak continued to spread in the neighboring country. 

A Dorscon Orange alert means the novel 2019-nCoV coronavirus is dangerous and can spread easily from human-to-human but its spread is still contained.

Singapore has 43 confirmed cases of coronavirus infection as of Sunday, according to the ministry.

"All travelers to Singapore are urged to take extra precautions to prevent transmissions of the virus," the Foreign Affairs Ministry said on its website.

Indonesians who plan to visit or are already in Singapore have been told to keep themselves fit, improve hygiene and avoid unnecessary outdoor activities.

In case of emergency, Indonesian citizens in Singapore can contact the Indonesian Embassy on +65 67377422 or press the emergency button on the ministry's official Safe Travel application.

"The Drescon Orange alert means [the Singaporean government] deems the novel coronavirus a dangerous one. It will take all measures to reduce risks of further infections," the ministry said.

An Indonesian migrant worker in Singapore was confirmed to have been infected by the coronavirus last week.