The Islamic State has claimed responsibility for the truck attack in Berlin on Monday. The attack has left at least 12 dead and dozens more injured.
NBC reports the Pakistani migrant who was arrested Tuesday as a suspect in the deadly truck attack on a crowded Christmas market in Germany has been released because of insufficient evidence.
The man was arrested not far from the scene of Monday night's carnage in the German capital, where 12 people were killed and nearly 50 others wounded.
But the Federal Prosecutor’s Office released him Tuesday night after investigators said they could not prove he was in the cabin of the truck during the rampage.
Local media identified the suspect as "Naved B.," a 23-year-old who entered Germany via Austria on Dec. 31, 2015. He was reportedly already known to police for minor offenses. Those reports could not immediately be confirmed by NBC News.
De Maiziere said only a few of the victims had been identified so far, and that 18 of the 48 wounded had suffered severe injuries.
Among the dead was a Polish man found shot to death inside the cab of the stolen truck. The weapon has not been found.
Bloodstained clothing was also found inside the cab, but the suspect in custody was wearing clean clothes, Frank said.
Christmas markets in Berlin were closed Tuesday as a mark of respect for the victims, but the interior ministry said other events around the country would take place with increased security measures.