Europe scrambles to find Tunisian suspect in Berlin attack

The wanted poster issued by German federal police on Wednesday, Dec. 21, 2016 shows 24-year-old Tunisian Anis Amri who is suspected of being involved in the fatal attack on the Christmas market in Berlin on Dec. 19, 2016. German authorities are offering a reward of up to 100,000 euro ($105,000) for the arrest of the Tunisian. (German police via AP) (The Associated Press)

The wanted photo issued by German federal police on Wednesday, Dec. 21, 2016 shows 24-year-old Tunisian Anis Amri who is suspected of being involved in the fatal attack on the Christmas market in Berlin on Dec. 19, 2016. German authorities are offering a reward of up to 100,000 euros ($105,000) for the arrest of the Tunisian. (German police via AP) (The Associated Press)

The photo issued by German federal police on Wednesday, Dec. 21, 2016 shows 24-year-old Tunisian Anis Amri on a photo that was used on the documents found in the truck. He is suspected of being involved in the fatal attack on the Christmas market in Berlin on Dec. 19, 2016. German authorities are offering a reward of up to 100,000 euros (US$ 105,000) for the arrest of the Tunisian. (German police via AP) (The Associated Press)

Authorities across Europe are scrambling to find a Tunisian man wanted as a suspect in Monday's attack on a Christmas market in Berlin.

The search prompted police in Denmark to search a Sweden-bound ferry in the port of Grenaa after receiving tips that someone resembling suspect Anis Amri had been seen there. But police said Thursday they found nothing indicating his presence.

German authorities issued a wanted notice for Amri on Wednesday and offered a reward of up to 100,000 euros ($104,000) for information leading to his arrest.

German officials had deemed Amri, who arrived in the country last year, a potential threat long before the attack. They had been trying to deport him after his asylum application was rejected, and politicians are bickering over what consequences should be drawn.