A Hamas operative was arrested in London in November 2025 after Israeli and German security services uncovered a planned attack in Vienna. The operative reportedly filmed a video in advance, appearing masked and armed in front of a Hamas flag, describing the planned attack as an act of revenge.

According to the indictment, the suspect transferred handguns and ammunition from Berlin to Vienna. Security sources stated that senior Hamas officials supervised the organization, and the arrested individual was a key figure in the operation.