BEIJING, June 1 (Reuters) - China on Tuesday reported 23 new coronavirus cases in the mainland for May 31, versus 27 a day earlier, the health authority said.

Out of the new infections, 12 were imported, the National Health Commission said in a statement. The 11 local cases were all reported in southern Guangdong province. There were no new deaths.

China also reported 15 new asymptomatic patients, compared with 19 a day earlier.

As of May 31, China had a total of 91,122 confirmed COVID-19 cases, while its death toll remained unchanged at 4,636. (Reporting by Lusha Zhang, Roxanne Liu and Tony Munroe Editing by Shri Navaratnam )