Related Rule
New Zealand
Practice Relating to Rule 10. Civilian Objects’ Loss of Protection from Attack
Section A. Civilian objects used for military purposes
New Zealand’s Military Manual (1992) provides:
Civilian vessels, aircraft, vehicles and buildings may be lawfully attacked if they contain combatant personnel or military equipment or supplies or are otherwise associated with combat activity inconsistent with their civilian status. 
New Zealand, Interim Law of Armed Conflict Manual, DM 112, New Zealand Defence Force, Headquarters, Directorate of Legal Services, Wellington, November 1992, § 516(3); see also § 623(3).