After a contentious meeting in which Deval refused to provide satisfactory answers on 29 April 1827, the dey struck Deval with his fly whisk. Charles X used this slight against his diplomatic representative to first demand an apology from the dey, and then to initiate a blockade against the port of Algiers. France demanded that the dey send an ambassador to France to resolve the incident. When the dey responded with cannon fire directed toward one of the blockading ships, the French determined that more forceful action was required.