At daybreak on 17 January the picquets were withdrawn behind the rearguard and went aboard ship; by morning most of the army had embarked. When Soult perceived that the British had left the ridge, he posted six guns on the heights above the southern end of the bay and by midday the French were able to fire upon the outlying ships. This caused panic amongst some of the transports, four of which ran aground and were then burned to prevent their capture. Fire from the warships then silenced the battery.