POLISH dancer Cezary Olszewski has been found dead in a hotel at the age of 42.
The Dancing With The Stars champion was discovered in his hometown of Ostroleka on Monday morning.
Local reports also state that Cezary's cause of death is yet to be determined.
However, Tomasz Zeranski from the Ostroleka police confirmed that an investigation is already underway.
"We have recorded the death of a 42-year-old man in one of the hotels in Ostroleka," he told Polish media.
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"Police officers are conducting investigations under the supervision of the prosecutor. The cause of the man's death will also be determined."
Cezary took up ballroom dancing when he was still in school and won many tournaments on his way to becoming a finalist of the Polish Championships.
He performed in Dancing With The Stars between 2008-2010 and won the Crystal Globe in his first year.
Alongside Magdalena Walach, he won the seventh series of the show.
Cezary also danced alongside Anna Popek, Anna Nowak-Ibisz, Grazyna Wolszczak and Dorota Zawadzka throughout his time on the programme.
Elsewhere, Cezary made appearances in episodes of Face To Face, Pitbull and M Jak Milosc.
According to reports, Cezary married his longtime partner Aneta Gworys five years ago.
However, the couple never went public with their love life and only a few people knew about it.