The Korea Centers for Disease Control and Prevention said the South Korean man, believed to be around 63 years old, died at a hospital on Wednesday and posthumously tested positive for the virus.
A 61-year-old South Korean woman, who tested positive for the virus earlier this week, attended worship services at the church on February 9 and this past Sunday.
Lee, who founded the church in 1984, said the mass infection is "a devil's deed to curb the rapid growth of Shincheonji", according to an internal message carried by South Korea's Yonhap News Agency.
Daegu, where the 2.5 million inhabitants have been asked to stay indoors, and neighboring Cheongdo were designated as a "special management zone" on Friday.
So far, some 170 virus patients have been traced to the church's services.
KCDC said 4,475 Shincheonji members had been tested in Daegu and 544 said they had symptoms.
But with more church members than available places in heaven, they are said to have to compete for slots and pursue converts persistently and secretively.
Speculation in the rest of the world continues to mount about cases and deaths from COVID-19 in reclusive North Korea, whose poverty and ill-prepared and ill-equipped health system might make this disease "much more lethal". The city had been regarded as relatively free of the virus outbreak since the country reported the first case of COVID-19 on January 20. Health authorities will also check all pneumonia patients in Daegu hospitals, he said.
GENEVA - The World Health Organization (WHO) said Friday that the window of opportunity to contain wider worldwide spread of the COVID-19 epidemic is narrowing, urging the global community to act quickly before it completely closes.
The government made a decision to designate Daegu and neighboring Cheongdo as "special management zones", following the spike in the number of infected people and the nation's first death from the virus.
Health ministry spokesman Kianush Jahanpour said two of the new cases were also in Qom and the other was in Arak, south of the holy city.
"Most of the hospital's patients who have been diagnosed are those who had been staying as inpatients for mental illnesses", Seoul's vice health minister Kim Gang-lip told reporters.