Despite predictions of up to and mules, and of equipment were removed; that could not be embarked were killed so as not to fall into Ottoman hands and were left behind with smashed wheels. As at Anzac, large amounts of supplies (including 15 British and six French unserviceable artillery pieces which were destroyed), gun carriages and ammunition were left behind; hundreds of horses were slaughtered to deny them to the Ottomans. A sailor was killed by debris from a magazine that exploded prematurely and a lighter and a picket boat were lost. Shortly after dawn, the Ottomans retook Helles. In the final days of the campaign, Ottoman air defences had been increased by a German–Ottoman fighter squadron, which began operations over the peninsula and inflicted the first British flying losses a couple of days after the evacuation of Helles, when three shot down two RNAS aircraft.