| Action in the Oslofjord | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Norwegian Campaign in World War II | |||||||
 The ship Pol III in Tønsberg. The bow is damaged from ramming the German torpedo boat Albatros. | |||||||
| |||||||
| Belligerents | |||||||
 Norway |
 Germany | ||||||
| Commanders and leaders | |||||||
| Leif Welding-Olsen † | Oskar Kummetz | ||||||
| Strength | |||||||
|
2 forts 1 patrol boat |
2 heavy cruisers 1 light cruiser 2 torpedo boats 8 minesweepers | ||||||
| Casualties and losses | |||||||
|
1 killed 14 captured 1 patrol boat damaged | 1 torpedo boat sunk | ||||||
The Action in the Oslofjord occurred late on 8 April 1940 in World War II. As Kampfgruppe 5 of the German invasion force proceeded towards Oslo, it encountered Norwegian defences in the Oslofjord. During a short exchange that resulted in the first Norwegian casualty of the war, the Germans managed to push through down to Drøbak Sound, where they would face more determined resistance.