Russian tug Niprij according to a CIA report dated 17 May 1948

An item dealing with the Russian merchant fleet active on the Rumanian part of the river Danube mentioned the former Romanian Ziu and now Russian tug Niprij with a displacement of 550 tons and 800hp oil fuelled engines and active between Moldova Veche and Komarom.

Source
The report was published on www.archive.org, document number CIA-RDP82-00457R001500460010-8.