The Berlin police have launched a manhunt for Abdul B., described as 1.90 meters tall and of slender build, who is believed to have links to an Islamist background. The attack occurred when a vehicle drove into a crowd, killing one woman and injuring at least 16 others, with three individuals reported in critical condition. The police have urged the public to avoid direct contact with the suspect, who may be armed and dangerous, and have established a portal for tips related to the incident.