The Ningbo government in Zhejiang province reported an asymptomatic COVID-19 case who came to the city from Beijing on Dec 23. 

According to the Ningbo city authority, the case, surnamed Fu, is a permanent resident in Beijing's Shunyi district. 

He flew to Ningbo from Beijing via CA8347 on Tuesday evening with three other colleagues for a business trip. 

The three of them were tested afterwards and showed negative results. 

Before Fu took the flight, he received a nucleic acid test because he was going to take the entrance examination for graduate school. Testing was required for all students who are going to take the examination by the Beijing health authority. 

On Wednesday, Shunyi district received the positive test result. 

At present, the residential community Lianzhuhuayuan in Shunyi district has been fully closed to outsiders, according to Beijing Daily. 

Delivery men are now not allowed to enter the community. Residents are asked to undergo testing in an orderly fashion.