A “cruise to nowhere” off Singapore has been cut short after a passenger tested positive for the coronavirus, officials said, a blow to efforts to revive the hard-hit industry.

The voyages — starting and ending at the city-state with no stops — began last month, marking the resumption of cruises after a months-long hiatus due to travel restrictions.

“One guest aboard Quantum of the Seas tested positive for coronavirus after checking in with our medical team,” operator Royal Caribbean said in a statement.

The Singapore tourism board added that all on-board leisure activities were halted and passengers were asked to stay in their cabins.