52It submits, next, that to interpret the exception in Article 4(1) as meaning that if part of the document requested may harm international relations, that suffices for the other parts of the document, which the public would otherwise have been able to see, to be excluded from disclosure goes beyond what is necessary for protecting the public interest (see, to that effect, Case C-321/96Mecklenburg v Kreis Pinneberg [1998] ECR I-3809, paragraph 25, on the interpretation of certain exceptions in Council Directive 90/313/EEC of 7 June 1990 on the freedom of access to information on the environment (OJ 1990 L 158, p. 56)). The final subparagraph of Article 3(2) of that directive provides, moreover, that information held by the public authorities is to be supplied in part where it is possible to separate out the confidential parts.