Article 12 5.

Where a Member State faces exceptional circumstances of natural or anthropogenic origin or force majeure, in particular extreme floods and prolonged droughts, or significant pollution incidents, which could affect water bodies situated in other Member States, it shall ensure that the competent authorities for the affected water bodies in those Member States, as well as any relevant coordination structure identified under Article 3(4) for an international river basin, and the Commission, are informed without delay, and that the necessary cooperation, if not already in place, is established between the Member States affected and used to investigate the causes and address the consequences of the exceptional circumstances or incidents and mobilise emergency response as appropriate.