The number of deaths from a coronavirus epidemic in China has risen to 259, the country’s health authority said on Saturday, as the United States announced new border curbs on foreign nationals who have been in China. The province of Hubei, the centre of the epidemic, remains under virtual quarantine, with roads sealed off and public transport shut down, but small numbers of travellers continue to breach the lockdown. Amid fears that the virus could spread further overseas, the United States announced measures to restrict entry to foreign nationals who have recently been in China. All three major US airlines also said on Friday they would cancel flights to mainland China. Australia’s Qantas Airways Ltd said the entry restrictions imposed by the United States and other countries had forced it to suspend its direct flights to China from Feb. 9. Nearly 10,000 flights have been suspended since the outbreak of the coronavirus in China, according to travel and data analytics firm Cirium. Many nations have put on special charter flights to repatriate citizens from China. More than 300 South Koreans arrived home on Saturday on a second charter flight from China and have been transported to a facility where they will be isolated for two weeks, the health ministry said. Seven people on the flight exhibited symptoms and were sent immediately to hospital. Cities across China have continued to implement special measures aimed at curbing the spread of the pathogen. Tianjin, a city in northern China with around 15 million people, said all schools and businesses would be suspended until further notice. The US-based China Human Rights Defenders urged the Chinese government to ease restrictions on movement and counter discrimination against residents of Wuhan and Hubei, adding that censorship had contributed to the spread of the virus. “Human rights must not be a casualty of the government’s work to contain the coronavirus outbreak that has killed nearly 200 people and affected millions,” the group said. The World Health Organization, which declared the outbreak a public health emergency of international concern on Thursday, has praised China’s response to the outbreak. The United Nations has announced it has moved a key round of talks on a new biodiversity treaty originally scheduled to take place in Kunming in southwest China on Feb. 24. The talks will now take place in Rome. Several high-profile sporting events have also been moved or postponed, the latest a badminton Olympic qualifier in Hainan province. Walmart Inc, the world’s largest retailer, announced it was temporarily limiting “non-business critical travel” to China, while farm equipment maker Deere & Co temporarily closed its facilities in China, the latest of dozens of major companies restricting travel and operations due to the outbreak. China’s National Health Commission said there were 2,102 new confirmed infections in China during Friday, bringing the cumulative total to 11,791.