"Four divers and rescuers on two boats have begun to search for the missing man," the Russian Emergencies Ministry's YRPSO told Interfax on Wednesday.
Earlier it became known that the backpack of the co-founder of the educational platform Skillbox Igor Koropov was found in the sea.
The man disappeared on November 1.
According to reports, on the night of November 1, he left his hotel and headed towards the pier of the Nizhneimeretinsk port.
Since then, his whereabouts are unknown.