 During the morning, Duperré sent an official boarding party aboard "Nereide", who wet the decks to prevent any risk of fire from the ships burning in the harbour and removed 75 corpses from the frigate.When news of the arrival of Duperré's squadron reached Decaen at Port Napoleon, he immediately despatched fast couriers to Grand Port and ordered Hamelin's squadron, consisting of the frigates "Vénus", "Manche", "Astrée" and the brig "Entreprenant", to make ready to sail in support of Duperré.Hamelin departed Port Napoleon at midnight on 21 August, intending to sail northeast and then south, down the island's eastern shore.