On September 3, FNC Entertainment notified fans that N.Flying members Seunghyub, Yoo Hwe Seung, and Seo Dong Sung have tested positive for COVID-19.

The agency revealed,

"On September 3, our artists N.Flying's Lee Seunghyub, Yoo Hwe Seung, and Seo Dong Sung were notified as having tested positive for COVID-19.

Seunghyub, Yoo Hwe Seung, and Seo Dong Sung noticed symptoms in their health conditions back on September 2 and carried out testing through a self-testing kit. When the self-testing kit read positive, all three members immediately received PCR testing. As of September 3, the three N.Flying members have formally tested positive.

Currently, Seunghyub, Yoo Hwe Seung, and Seo Dong Sung are following the disease control department's guidelines while in quarantine. N.Flying members Jaehyun and Cha Hun also plan to immediately halt all schedules temporarily and self-quarantine.

All staff members who came in contact with the N.Flying members have been notified accordingly, and they are currently undergoing COVID-19 testing.

FNC Entertainment promises to do our best so that our artists can recover as soon as possible, always putting the health and safety of our artists as the topmost priority. We sincerely apologize for causing concerns for many with this news, and we assure you that we will be following the disease control department's directions diligently."