Super Junior Leeteuk's father and his grandparents have passed away due to a car accident. 

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Leeteuk who is currently serving his mandatory military service, went home after hearing about this unfortunate news. Likewise, his older sister halted her musical practice and rushed to the hospital after hearing what happened.

The funeral for the deceased was arranged to take place at the Korea University Medical Center (Guro Hospital)'s funeral parlor.  A rep from the funeral parlor said, "The memorial altar for the three deceased was arranged for 1:30 PM KST.  The chief mourner is the younger sibling of Lee Teuk's father, Park Yong In (57)."

Lee Teuk's agency SM Entertainment stated, "We heard the unfortunate news.  We will relay our position after fully grasping the situation."

Condolences to Leeteuk and his family. 

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[Update] - the reports about a car accident being the cause death were found to be false later on. Police have revealed that the three were discovered already having passed in their home. Read more in the latest article here.