Anne Frank was discovered on 4 August 1944 when German police raided the Secret Annex in Amsterdam and arrested the people hiding there. The most common explanation is that the raid happened after a tip-off from Dutch informers , though later research has also raised the possibility that the annex may have been found during a separate operation and that the exact cause is still not fully certain.

What happened

  • Police entered the hidden annex and found Anne, her family, and the others in hiding.
  • They were taken away first for interrogation and then sent through Nazi camps.
  • Anne later died in Bergen-Belsen in early 1945.

What is known

  • A tip-off theory has long been the standard explanation.
  • Some newer investigations suggest the discovery may not have been caused by betrayal alone, and the exact reason remains debated.

If you want, I can also give you a very short 2-sentence version or a timeline of Anne Frank’s arrest and deportation.