Mainland China reported 30 new coronavirus cases on Saturday, up from 19 a day earlier as the number of cases involving travellers from abroad as well as local transmissions increased, highlighting the difficulty in stamping out the outbreak. The National Health Commission said in a statement on Sunday that 25 of the latest cases involved people who had entered from abroad, compared with 18 such cases a day earlier. The mainland has now reported a total of 81,669 cases, while the death toll has risen by three to 3,329.