100 German aircraft in 5 waves crossed the Strait of Dover at 1335 hours and were intercepted by 4 squadrons of British fighters; 5 German Bf 109 fighters, 2 German He 111 bombers, and 2 British Spitfire fighters were destroyed during the ensuing battle. A few hours later, the Royal Navy withdrew all destroyers from Dover to Portsmouth in southern England, United Kingdom. Overnight, German aircraft deployed mines and bombed British coastal cities.