4. Also urges States to take all necessary measures at the national and international levels to prevent any acts of violence against the missions, representatives and officials mentioned in paragraph 2 above, and to ensure, with the participation of the United Nations where appropriate, that such acts are fully investigated with a view to bringing offenders to justice;
4. 又敦促各国在国家和国际范围内采取一切必要措施，防止任何侵犯上文第2段所述的使团、代表团、代表和官员的暴力行为，并确保在联合国酌情参与下对这类行为进行彻底调查，以期将犯罪者绳之以法；