Соответствующая норма
Practice Relating to Rule 47. Attacks against Persons Hors de Combat
Section B. Specific categories of persons hors de combat
Sweden’s IHL Manual (1991) notes:
The [1907 Hague Regulations] and [the 1949] Geneva Conventions include rules intended to afford protection to combatants in situations where they have laid down their arms or are no longer capable of defending themselves … or where combatants have become sick, are wounded, shipwrecked or captured. These fundamental rules have not always been applied in combat situations, and for this reason it has been considered necessary to reaffirm certain of the older provisions to assert their fundamental importance …
Personnel attempting to save themselves from a sinking vessel shall according to international humanitarian law be considered as distressed, and may not be attacked. 
Sweden, International Humanitarian Law in Armed Conflict, with reference to the Swedish Total Defence System, Swedish Ministry of Defence, January 1991, Section, pp. 32 and 33.
Under Sweden’s Penal Code (1962), as amended in 1998, “attacks … on persons who are injured or disabled” are “crimes against international law”. 
Sweden, Penal Code, 1962, as amended in 1998, Chapter 22, § 6(3).