German police on Tuesday released a Pakistani man arrested for the Berlin truck attack and Wednesday announced a massive manhunt for a man from Tunisia instead. That suspect has now been identified as Anis Amri, believed to be 23 or 24 years old and who a German official has said has ties to radical Islamist groups and was deemed a risk, CNN reports. The Washington Post notes Amri had been the subject of a German terror investigation earlier this year. A $105,000 reward from German law enforcement for Amri, described as being under "urgent suspicion," is on the table, and he's described as being 5 feet 10 inches tall and about 165 pounds. "If you see this person that we are seeking, inform the police," the notice on Amri reads. "Please do not put yourself in danger because this person could be violent and armed!"
Per CBS News, Amri was registered in the state of North Rhine-Westphalia and had attempted to gain asylum. The state's interior minister tells the BBC that even though asylum was denied in June, deportation papers hadn't yet been completed—partly because Tunisia denied Amri was a citizen and refused to take him back. A warrant issued for Amri holds six different aliases he's used in the past, which is also what's led to his age being somewhat unclear. A Tunisian security official tells the Local that Tunisian anti-terrorism cops questioned Amri's parents Wednesday. Amri is also said to have four sisters and a brother, though it's unknown if they're also being interrogated. Amri was reportedly arrested more than once in his home country for drug use before he defected to Italy in 2011 (the BBC says 2012), where he stayed for three years before heading to Germany, the source notes.