GELSENKIRCHEN
135 aircraft - 60 Wellingtons, 36 Blenheims, 20 Hampdens and 19 Whitleys - to bomb synthetic-oil plants. Only 56 aircraft reported bombing the designated targets. Gelsenkirchen reports bombs in the city and in the surrounding towns of Buer, Horst and Hessler. One person was killed in Gelsenkirchen. 1 Whitley lost.
Minor Operations: 15 Wellingtons to Rotterdam, 1 Blenheim to Calais and 4 Hampdens mine-laying in Kiel Bay. No losses.
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6 Blenheims of 114 Squadron were escorted by 72 fighters in this first Circus operation. The Blenheims bombed a German ammunition depot in the Fort de Guines, south of Calais. None of the Blenheims were lost.
2 further Blenheims dispatched on cloud-cover raids to Emden and Nordholz turned back.
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12 Whitleys to attack warship in Brest harbour. No losses.