Finnish pollution control vessel Hylje explained

Hylje (799) is a combined pollution cleanup ship and vehicle transport ship built in 1981 and refitted in 1990–1991. She is operated by a civilian crew from the Ministry of the Environment, but is under Finnish Navy control. The vessel can act as a landing ship and logistic support vessel. The vessel has a capacity to carry 100 tons of deck cargo and its bow ramp can unload vehicles up to 42 tons. The vessel is equipped with oil and oil-slurry collection tanks with a total capacity of . The vessel can be operated in light ice. Hylje is equipped with a 6-ton crane