A cruise ship operated by Genting Cruise Lines had returned to the city-state after a 40-year-old passenger was suspected to have contracted COVID-19, Singapore’s tourism board said on Wednesday.

“On July 13, the passenger was identified as a close contact of a confirmed case on land, and was immediately isolated as part of onboard health protocols,” the tourism board said in a statement.

It said the passenger tested positive to a Polymerase Chain Reaction (PCR) test onboard and had been conveyed to hospital for further confirmatory testing.