It appears the main suspect in the Berlin truck attack was previously known to German police, and a 100,000 euro reward is being offered for his capture.

He has been identified as Tunisian-born 24-year-old Anis Amri, who had previously served four years in an Italian prison for burning down a school. The public has been warned he is armed and possibly dangerous.

“The North Rhine-Westphalian state office for criminal investigations has initiated proceedings with the federal prosecutor-general because of suspicions of the preparation of a criminal offence endangering national security. The general prosecutor in Berlin was leading the ensuing investigations,” said North Rhine Westphalia’s Interior Minister Ralf Jaeger.

It appeared Amri had entered Germany in July 2015 and had his asylum application refused. Since November he had been considered a threat, but could not be deported because some of his Tunisian documents were missing. (Euronews)