Former F.T. Island member Jonghun has released a letter of apology after his DUI cover-up controversy and alleged involvement in Seungri and Jung Joon Young's hidden camera sex tape chatroom.

After FNC Entertainment announced Jonghun's leave from F.T. Island and retirement from the entertainment industry, he posted the following letter on Instagram:

"Hello, this is Choi Jong Hoon.

I am writing this message to apologize to the Korean people who may feel upset and outraged with me.

After reading the conversation in the chatroom I was involved in through the news, I was so distressed and ashamed to come across the past messages I forgot about again.

The fact I made these careless remarks and couldn't remember them made me reflect on the ethics I've been living with. Furthermore, as I read over critical and angry comments, I realized I'd fallen into a sense of entitlement, and I'm in deep regret. I will repent immensely on my sins from my immoral life, and I'll live while reflecting on this for the rest of my life.

Firstly, I want to bow my head in apology to the victims who were hurt with lasting wounds. I apologize to the numerous victims who've been harmed after being dragged into this situation despite having nothing to do with it.

I'm also ashamed of myself as I was the leader of the F.T. Island members, but I acted disgracefully. To the fans PRIMADONNA, who've supported me until now, I'm sorry I failed to live up to the expectations you believed in and betrayed your trust in me. As of today, I'll leave the team and retire from the entertainment industry. I'll spend my entire life thoroughly reflecting on my past days when I acted carelessly without any feelings of remorse. I'll also diligently participate in future investigations without any falsehoods, and I'll accept the punishment I deserve. I apologize."