At 1330 hours, British radar at Essex, England picked up incoming aircraft, which turned out to be 12 Italian BR.20M bombers and 12 CR.42 biplane fighters heading for Harwich. Hurricane fighters from No. 257, No. 46, and No. 17 Squadrons RAF were launched to intercept over the Thames Estuary, shooting down 3 bombers and 3 fighters, while damaging 2 bombers, without incurring any losses. Winston Churchill would later quip that the Italian aircraft "might have found better employment defending the fleet at Taranto", referring to the successful British raid to take place later on the same day
