Battle of the Atlantic
- The first German merchant ship, the Heddernheim, is sunk by the British submarine Ursula off the Danish coast.
- U-22 sinks the Norwegian steamer Svinta (1267t) about 4 miles east of Copinsay. The Svinta had been damaged in a bomber attack on convoy ON-21 the previous day and was being towed by British tug St Mellons at the time.
- The British submarine Ursula sinks the German steamer Hedderheim (4947t) 8 miles ENE of Skagen. This is the first German merchant ship sunk by a British submarine in the war.
- U-38 sinks the Danish steamers Algier (1654t) and Christianborg (3270t) about 15 miles NNW of Foula, Shetlands. 5 crewmen are lost from the Algier and 1 from Christianborg. 18 survivors from the Algier are picked up by the British trawler Manx King.
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]Diplomatic Relations
A British delegation has a secret meeting with representatives of the Turkish government at Aleppo, Syria.
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France, Home Front
The French government orders a consignment of 'heavy water' from Norway for atomic research.
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