Chinese authorities have asked residents in two cities south of Beijing to stay home for seven days as they try to stamp out a COVID-19 outbreak in which more than 300 people have tested positive in the past week.

The cities of Shijiazhuang and Xingtai in Hebei province are restricting people to their communities and villages and have banned gatherings, according to notices they posted on social media.

Hebei reported 14 more confirmed cases in the latest 24-hour period, bringing the total in the ongoing outbreak to 137. It has found another 197 people without symptoms who tested positive. China does not include such asymptomatic cases in its confirmed count.

In this photo released by China's Xinhua News Agency, workers disinfect containers of coronavirus test samples outside of a residential neighborhood in Shijiazhuang in northern China's Hebei Province, Friday, Jan. 8, 2021. A city in northern China is offering rewards of 500 yuan ($77) for anyone who reports on a resident who has not taken a recent coronavirus test. The offer from the government of Nangong comes as millions in the city and its surrounding province of Hebei are being tested as part of efforts to control China's most serious recent outbreak of COVID-19.(Mu YuXinhua via AP)

In this photo released by China's Xinhua News Agency, workers disinfect containers of coronavirus test samples outside of a residential neighborhood in Shijiazhuang in northern China's Hebei Province, Friday, Jan. 8, 2021. A city in northern China is offering rewards of 500 yuan ($77) for anyone who reports on a resident who has not taken a recent coronavirus test. The offer from the government of Nangong comes as millions in the city and its surrounding province of Hebei are being tested as part of efforts to control China's most serious recent outbreak of COVID-19.(Mu YuXinhua via AP)

Beijing is requiring workers from Hebei to show proof of employment in Beijing and a negative COVID test before entering the nation’s capital. Chinese media reported hours-long backups at entry points on Friday.

In a separate outbreak, three more cases were reported in Liaoning province in the northeast, bringing the total there to 84 since the first cases surfaced about three weeks ago. Beijing has had 31 cases over the same period, though no new ones in the past 24 hours.

In this photo released by China's Xinhua News Agency, workers carry a container of coronavirus test samples outside of a residential neighborhood in Shijiazhuang in northern China's Hebei Province, Friday, Jan. 8, 2021. A city in northern China is offering rewards of 500 yuan ($77) for anyone who reports on a resident who has not taken a recent coronavirus test. The offer from the government of Nangong comes as millions in the city and its surrounding province of Hebei are being tested as part of efforts to control China's most serious recent outbreak of COVID-19.(Mu YuXinhua via AP)

In this photo released by China's Xinhua News Agency, workers carry a container of coronavirus test samples outside of a residential neighborhood in Shijiazhuang in northern China's Hebei Province, Friday, Jan. 8, 2021. A city in northern China is offering rewards of 500 yuan ($77) for anyone who reports on a resident who has not taken a recent coronavirus test. The offer from the government of Nangong comes as millions in the city and its surrounding province of Hebei are being tested as part of efforts to control China's most serious recent outbreak of COVID-19.(Mu YuXinhua via AP)

A medical worker in a booth takes nasal samples from a police officer at a coronavirus testing site in Seoul, South Korea, Friday, Jan. 8, 2021. (AP PhotoAhn Young-joon)

A medical worker in a booth takes nasal samples from a police officer at a coronavirus testing site in Seoul, South Korea, Friday, Jan. 8, 2021. (AP PhotoAhn Young-joon)

Junior high students read their manga comic books while waiting at a bus stop on their way home in Tokyo on Friday, Jan. 8, 2021. Japan declared a state of emergency in Tokyo and three nearby prefectures Thursday, as coronavirus cases continued to surge in the nation. The declaration asks restaurants and bars close by 8 p.m. while drinks won't be served after 7 p.m. (AP PhotoHiro Komae)

Junior high students read their manga comic books while waiting at a bus stop on their way home in Tokyo on Friday, Jan. 8, 2021. Japan declared a state of emergency in Tokyo and three nearby prefectures Thursday, as coronavirus cases continued to surge in the nation. The declaration asks restaurants and bars close by 8 p.m. while drinks won't be served after 7 p.m. (AP PhotoHiro Komae)