Two places in China have found traces of the novel coronavirus on the outer packaging of imported frozen products, local authorities said on Sunday.

A sample taken from the outer packaging of frozen pork imported into Xi'an, capital of northwest China's Shaanxi Province, from Argentina as well as a sample of outer packaging of imported frozen aquatic product in Sishui County, east China's Shandong Province, have tested positive for the virus, local Chinese authorities said.