Baltic Sea
The Finnish steamer Verna H (983t) is seized by German warships and taken to Swinemünde.
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]Battle of the Atlantic
- The Belgian fishing vessel Maurice Marguerite (28t) sinks on a mine off Dyck Light Vessel with the loss of 3 crewmen.
- The German steamer Trifels (6198t) is captured by the French armed merchant cruiser Koutoubia off the Azores. She is taken to Casablanca and put in French service under the name Saint Louise.
| ]Diplomatic Relations
Through von Ribbentrop, Hitler rejects the offer of mediation by Queen Wilhelmina and King Leopold.
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Occupied Poland
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