The cause of death is publicly unknown

Guardian reports that Kim Jeong-hwan AKA Yohan has died at the age of 28.

Yohan was known for being a member of Kpop group TST. The group’s record label KJ Entertainment announced the news in a statement.

“We are sad to relay the most unfortunate, sorrowful news,” the statement read. “On June 16, TST member Yohan left this world. The late Yohan’s family is currently in deep mourning.”

The cause of death has not been announced.

Yohan began his career in 2013 with Kpop group NOM before joining TST in 2017. TST’s EPs Times UP and Wake Up reached the Top 30 in South Korea.

Earlier this year Kpop star Goo Hara died at the age of 28, sparking revenge porn concerns.