Police say they are searching for a Tunisian man for his role in a terror attack Monday.
Authorities are looking for a 24-year-old Tunisian migrant, identified as Anis Amri in a manhunt across Europe.
Amri is suspected of carrying out the attack -- when a truck plowed into a crowded Berlin, Germany Christmas market, killing 12 people and injuring dozens of others.
The Washington Post reports a senior official said the man was a subject of a German terrorism probe earlier this year, but wasn't deported even though his asylum bid was rejected.
The BBC reports before he moved to Germany Amri served a four-year arson sentence in Italy.
German media outlets report Amri became a suspect after his temporary residency papers were found in the cab of the truck.
The German government is offering a $100,000 Euro or just over $100,000 U.S. dollars for information leading to Amri's arrest.
President-elect Donald Trump said recent attacks, including the one in Germany, show he had been "proven to be right" about his plans to ban Muslims from immigrating to the U.S.