Shafaq News/ authorities in the capital of China's Hebei province strengthened travel restriction on Thursday to curb the spread of the coronavirus as the country reported the biggest rise in daily COVID-19 cases in more than five months.

Hebei, which entered a "wartime mode" on Tuesday, accounted for 51 of the 52 local cases reported by the National Health Commission on Thursday. This compared with 20 cases reported in the province, which surrounds Beijing, a day earlier.

Authorities in Shijiazhuang, Hebei's capital have launched mass testing drives and banned gatherings to reduce the spread of the coronavirus.

Total new COVID-19 cases for all of mainland China stood at 63, compared with 32 reported a day earlier, marking the biggest rise in daily cases since 127 cases were reported on July 30.

The number of asymptomatic patients, who have been infected with the SARS-CoV-2 virus that causes the disease but have yet to develop any symptoms, also rose to 79 from 64 a day earlier.

The total number of confirmed COVID-19 cases in mainland China since the outbreak first started in the city of Wuhan in late 2019 now stands at 87,278 cases, while the death toll remained unchanged at 4,634.