The provincial health commission said both the two domestically transmitted cases in the city of jilin were close contacts of earlier confirmed cases.
The district's risk associated with the virus has been upgraded from the medium-level to the high-level after reports of the new cases.
No new asymptomatic cases were reported Sunday in the province, with three still under medical observation by Sunday.
By Sunday, the province had reported a total of 127 locally transmitted confirmed cases, including two deaths and 103 who had been discharged from hospital after recovery.
The city of Jilin has tried to cover more people in its nucleic acid testing, with more than 40,000 locals tested over the past three days, parts of the city which have tightened social distancing restrictions in response to a local cluster of still-unknown origin.
Residents of the province's Jilin city must show certificates of health, including a recent negative nucleic acid test, if they wished to leave the city, state media reported.
In Shulan county, which is under the city's jurisdiction, train service has been halted until the end of the month.
The industrial city of Shenyang in neighboring Liaoning province is requiring visitors from Shulan county to undergo a 21-day quarantine on arrival, according to state broadcaster CCTV.
In other parts of the country, restrictions have been gradually lifted. Many people in Beijing, where no cases have been reported in weeks, have been going increasingly mask-less outdoors, although most establishments still require they wear protective gear when indoors among other people and on public transport.
No new Covid-19 deaths have been reported in China in over a month, although some have been announced retroactively after further tests were performed. Just 82 people remain in treatment while another 450 are under isolation and monitoring as suspected cases or for testing positive for the virus without showing symptoms.
China has reported a total of 4,634 deaths among 82,954 cases of the virus since it was first detected in the central industrial city of Wuhan late last year. - Xinhua/Asian News Network
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