Super Junior's Kyuhyun and his family are suffering from a stalker. 

On Instagram, Kyuhyun's sister revealed Kyuhyun, as well as their parents, and herself have been stalked by a sasaeng fan for the past 3 years. She shared screenshots of the messages and phone calls she and her family received from the stalker, and stated, "I've been trying to understand him/her many times but it's been 3 years stalking me, Kyu, and my parents. Threatened to kill me. Hack my phone and my account."

The stalker constantly called and texted Kyuhyun's family. 

And also sent photos, and stated, "I'm watching." The man in the image below is Kyuhyun's father.

The stalker would also text, "Did you not get a good night sleep?," "I love you," "I'm always watching you."

When Kyuhyun's sister exposed the stalker on Instagram, the stalker with the Instagram ID hyori35 started threatening the family, stating s/he will share their personal info and also reveal photos that will destroy Kyuhyun's career. 

The stalker also wished "happy death" to Kyuhyun's sister who is pregnant. 

Netizens are deeply shocked by the stalker and demanding SM Entertainment to help Kyuhyun and his family. Meanwhile, Kyuhyun's sister has deleted the post due to ongoing threats from the stalker.