The Igor Belousov is a relatively new specialized submarine rescue ship equipped with a helicopter landing dock and deep-sea search gear, the first built by Russia for the purpose of search and rescue in over thirty years.
It was spotted about 11 kilometers off of Latvia's territorial waters inside its Exclusive Economic Zone (EEZ).
Armed Forces on 6 MAY in LV EEZ 6 nmi from territ. waters spotted RU Navy's Igor Belousov Rescue Ship.
— NBS (@Latvijas_armija) May 6, 2015