South Korea confirmed 52 more cases of novel coronavirus on Friday as the number of infections linked to a religious sect in Daegu spiked, making it the worst-affected country outside China.
Thirty-nine of the new cases were connected to the Shincheonji Church of Jesus in the southern city of Daegu, the Korea Centres for Disease Control and Prevention (KCDC) said, taking the country's overall figure to 156.
More than 80 members of Shincheonji have now been infected, starting with a 61-year-old woman who developed a fever on February 10 but attended at least four church services before being diagnosed.
The mayor of Daegu - South Korea's fourth-biggest city, with a population of over 2.5 million - has advised locals to stay indoors, while access to a major US military base in the area has been restricted.
The streets remained active Friday with most people wearing masks, but many businesses were closed due to the outbreak.
Workers on motorcycles sprayed disinfectant outside the Shincheonji church in the city, where passer-by Seo Dong-min, 24, told AFP: "With so many confirmed cases here I'm worried that Daegu will become the second Wuhan," referring to the Chinese city where the virus first emerged.
Shincheonji is often accused of being a cult and claims its founder, Lee Man-hee, has donned the mantle of Jesus Christ and will take 144 000 people with him to heaven on the day of judgement.
But with more church members than places in heaven available, they are said to have to compete for slots and pursue converts persistently and secretively.
The KCDC said one more virus case had been confirmed at a hospital in Cheongdo county near Daegu where a total of 16 infections have now been identified, including a long-stay patient who died on Wednesday after showing symptoms of pneumonia.
Cheongdo is the birthplace of Shincheonji's founder Lee, and county officials said a three-day funeral was held for his brother three weeks ago at a hall owned by the hospital.
President Moon Jae-in called for a "thorough investigation" of everyone who attended the funeral and Shincheonji services.
"If you simply rely on the information provided by the church, the process can be slow," he told a Cabinet meeting. "We need faster measures."
'Too late now'
Daegu's renowned Mijin restaurant, which has been in business for over 40 years, has closed, with a notice reading: "For your safety, we are suspending the business until coronavirus-19 is under control. We wish you and your family good health."
And Lee Yoo-jin, 73, who runs a dress shop in the city centre, told AFP: "I have not had a single customer this week. I have run the shop for over 20 years and never have I seen such a drop."
Daegu's mayor Kwon Young-jin said the local government had surveyed 3 700 Shincheonji members and 409 said they were experiencing symptoms.
Some residents expressed frustration, with a passer-by at the church saying authorities should have closed a nearby subway station for cleaning.
"Now it's all over the place," said the woman, surnamed Kim. "It's too late now."
The central government on Friday declared Daegu and Cheongdo "special management zones".
Seoul will support the region with medical personnel, beds and equipment, Prime Minister Chung Sye-kyun said, and the Cabinet will meet three times a week to discuss the outbreak.
The US army garrison in Daegu - where around 10000 soldiers, civilians and family members live or work - has restricted access and instructed any American troops who recently attended Shincheonji services to self-quarantine.
"Travel in and around Daegu is highly discouraged unless absolutely necessary," the garrison said on Thursday in a Facebook post.
"Please avoid public places and public transportation, to include stores, restaurants, subways and other heavily congested areas."
Shincheonji has closed all its facilities nationwide.
"We are deeply sorry that because of one of our members, who thought of her condition as a cold because she had not travelled abroad, led to many in our church being infected and thereby caused concern to the local community," it said in a statement.