Hong Kong is to impose a mandatory 14-day quarantine on all visitors from mainland China as it battles to prevent the spread of a coronavirus outbreak.
The policy comes into effect on Sunday but officials refused to close the border entirely, as demanded by medical staff who have gone on strike.
Hong Kong, which has 21 confirmed cases and one fatality, suffered 300 deaths in the Sars outbreak in 2002-03.
There are 24,300 confirmed coronavirus cases and 490 deaths in mainland China.
Those figures included an additional 4,000 cases and 65 deaths on Tuesday.
BBC News reports the virus has spread overseas, with 25 nations confirming a total of 191 cases, although there have so far been only two deaths outside China.
At least 10 people on board a cruise ship docked in the Japanese port of Yokohama have tested positive for the virus.
