1943 Filipstad explosion

[2][3] The first explosion occurred at around 14:30 local time, and killed 20 dock workers, two crane operators, several German guards and crew from Selma.

[4] Workers that were not killed immediately managed to escape from the area or find shelter among large cement blocks on the wharf.

The main explosion occurred two hours later, at around 16:30, when an estimated 400 tons of ammunition exploded within a few seconds,[4] five firefighters were killed and sixteen severely injured.

[2] The fire resulted in a large number of shells and grenades being thrown over Oslo, but most of them did not explode.

[9] Pressure waves resulted in glass being damaged in large areas of Oslo and Aker.