In situations where an exceptionally large number of third-country nationals to be returned places an unforeseen heavy burden on the capacity of the detention facilities of a Member State or on its administrative or judicial staff, such a Member State may, as long as the exceptional situation persists, decide to allow for periods for judicial review longer than those provided for under the third subparagraph of Article 15(2) and to take urgent measures in respect of the conditions of detention derogating from those set out in Articles 16(1) and 17(2).

When resorting to such exceptional measures, the Member State concerned shall inform the Commission. It shall also inform the Commission as soon as the reasons for applying these exceptional measures have ceased to exist.

Nothing in this Article shall be interpreted as allowing Member States to derogate from their general obligation to take all appropriate measures, whether general or particular, to ensure fulfilment of their obligations under this Directive.