According to MBK Entertainment on October 20, DIA member Jung Chae Yeon was sent to the hospital after collapsing on her way to a promotional event. 

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The idol was scheduled to attend a promotional event for cosmetics brand 'CanMake Tokyo' on the afternoon of October 20. Despite being ill with a seasonal cold and fever, Jung Chae Yeon wanted to attend her schedule in order to greet her fans, but it was reported that she ultimately collapsed from her sickness combined with indigestion, while heading to the event location.

MBK told news outlets that Jung Chae Yeon "is currently resting after being transported to the hospital."

We hope she gets well soon.