Where an emergency situation arises, including a situation as described in Article 18 of Regulation (EU) No 1093/2010 or a situation of adverse developments in markets, which potentially jeopardises the market liquidity and the stability of the financial system in any of the Member States where entities of an investment firm group have been authorised, the group supervisor determined pursuant to Article 46 of this Directive shall, subject to Section 2 of Chapter 1 of this Title, alert, as soon as practicable, EBA, ESRB and any relevant competent authorities and shall communicate all information essential for the performance of their tasks.