Bavaria’s top security official says a video has been found on the Ansbach bomber’s phone showing him pledging allegiance to the leader of the Islamic State group.

Joachim Herrmann says that according to an initial translation of the Arabic-language video the 27-year-old man announced a “revenge” attack against Germany.

Herrmann told reporters Monday that the video strongly suggests the bombing was a “terrorist attack”

Herrmann said police found violent videos and bomb-making material at the home of the bomber.

Officers discovered videos with “Salafist content” on storage devices seized at the 27-year-old Syrian man’s home.

Herrmann told reporters Monday that police also found gasoline, chemicals and other material that could be used to make a bomb.

The unnamed Syrian was the only person killed in the blast. More than a dozen people were wounded.

(AP)