Two suspects were arrested following the attack, but German authorities released them due to insufficient evidence

By Stephanie Petit
Updated December 21, 2016 12:50 PM

Authorities are searching for a Tunisian man in connection to Monday’s truck attack on a crowded Berlin Christmas market after his identity documents were reportedly found in the vehicle used in the Monday evening tragedy, a German security official told CNN.

German police have identified the suspect as Anis Amri, 24, reports NBC. He is being sought in Germany and across Europe’s border-free travel zone, German officials announced.

According to CNN, the German federal prosecutor’s office issued a wanted notice for Amri, who they say is 5 feet 10 inches tall and weighs approximately 165 pounds. The office has offered a reward of up to 100,000 euros. The notice warns Amri could be “violent and armed.”

Anis Amri
| Credit: German police via AP

Two suspects were arrested in the wake of the attack that killed 12 and injured 48 others, but German authorities released them due to insufficient evidence, the Associated Press reports.

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In a brief statement Tuesday, German Chancellor Angela Merkel declared the incident a likely terrorist attack. ISIS has claimed it inspired the attack, according to CNN.

“This is a difficult day. I am, like millions of people during these hours, horrified and shocked by what happened at the Breitscheidplatz in Berlin,” she said, according to the New York Times. “We must assume at the current time that it was a terrorist attack.”

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The incident happened in Breitscheidplatz in western Berlin.

Julian Reichelt, editor-in-chief at Bild, a German newspaper, told CNN the market would be busy every night of the week leading up to Christmas. Reichelt also said the market is difficult to access by accident.

“It looks like something that was adapted by Nice,” Reichelt said, referring to last year’s Bastille Day attack that killed 86 people.

CNN also reported that the truck seemed to be going about 40 mph and made no apparent effort to avoid people.