The man, who is from Syria, was arrested on Saturday in the Neukölln district in southern Berlin.
The police task force has raided three addresses in the city, reports Bild . During the search, bomb-making materials were found, according to the newspaper.
The man is said to have expressed sympathy for the terrorist organization ISIS and shared propaganda on social media.
The plan is believed to have been an attack in Berlin, writes Bild.
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