A South Korean man known to be dating the youngest daughter of Russian Prime Minister Vladimir Putin has reportedly quit his job at a Samsung Electronics branch in Moscow.

The source from Samsung says Yoon tendered his resignation Monday due to excessive interest by people around him and safety concerns following media reports of his relationship with Putin's daughter Ekaterina Vladimirovna Putina.

Yoon entered the Moscow chapter of Samsung Electronics after completing his studies at the University of Illinois in the U.S.

A South Korean news outlet reported last week that the two are expected to marry soon, but Yoon, his family and Putin's side all deny the report.