The ship is docked in the yard for repair before they are found dead? Something smells fishy here.
Another article reads like this.
The captain of the ship notified the shipyard of the deaths of two Ukrainian employees, Oleksiy Voytsov, 34, and Sergi Kravchenko, 33, after their bodies were discovered in their rooms at around 8:30 a.m. on June 8, according to a written statement released by the Desan shipyard.
Image credit ANADOLU AGENCY
Article found at the below link.