§ 2. Crimes
Section 5
3. Anyone who commits, in the case of an international armed conflict, one of the following acts:
(d) treacherously killing or wounding individuals belonging to the hostile nation or army;
shall be liable to life imprisonment or a term of imprisonment not exceeding thirty years or a sixth category fine.

Article 8
War crimes
2. For the purpose of this Statute, "war crimes" means:
(b) Other serious violations of the laws and customs applicable in international armed conflict, within the established framework of international law, namely, any of the following acts:
(xi) Killing or wounding treacherously individuals belonging to the hostile nation or army

This provision follows the ICC Statute.