German police are searching for a Tunisian over Monday’s Berlin Christmas market attack, media reports say.
According to a temporary-stay permit found in the cab of the lorry that ploughed into crowds, the man, named as Anis A, was born in 1992 in the city of Tataouine, the reports say.
A police operation is said to be under way in the state of North Rhine-Westphalia where the permit was issued.
Reports say the suspect may have been injured in a struggle with the driver.
According to the newspapers Allgemeine Zeitung and Bild, the Tunisian suspect is aged 21 or 23 and is also known to use false names.
He applied for asylum in April and was given a temporary residence permit the Sueddeutsche Zeitung said.
Broadcaster N-TV said “measures are now imminent” in North Rhine-Westphalia but there are no details.
Officials have not confirmed the reports so far.
Twelve people died and 49 were injured when the truck was driven into crowds at the Breitscheidplatz Christmas market.