Russian State Corporation Rosatom reported removing all spent fuel from one of the facilities at the Scientific Research Technological Institute (NITI) in Sosnovy Bor. The fuel was shipped to the RT-1 reprocessing plant at the NPO Mayak, Ozersk. The transfer was completed in February 2017.
The facility in question is the KV-2 prototype pressurized-water naval reactor. It is believed to have used HEU fuel. According to the NITI 2015 annual report, removal of fuel from the KV-2 facility began in 2014 and was completed in February 2015. The KV-2 prototype was in operation since 1996.
NITI has also completed decommissioning of another prototype naval reactor, KM-1. It is a prototype of the lead-bismuth coolant reactor of the Project 705 Alfa submarines. KM-1 began operations in 1978 and was shut down in 1986. The reactor will be replaced by a new prototype of a naval reactor with liquid-metal coolant, referred to as AMB-8.