German police are investigating a vehicle attack at Berlin’s Pride festival that kills one person and injures others, according to multiple reports. Police say they have identified a suspect described as an Islamist and are seeking his arrest. Authorities report that the man was born in Germany and has Lebanese heritage, and they say investigators have found indications of connections to Islamist extremists.

Prosecutors say they have uncovered what they describe as an apparent motive. Al Jazeera reports that prosecutors have identified a video in which the accused pledges allegiance to ISIL (ISIS). Other outlets describe the case as being treated as Islamist terrorism while the manhunt continues and the suspect remains at large.

Officials across the sources emphasize that the investigation is ongoing, including efforts to locate the suspect. Reports also note that German investigators are working to confirm details of the individual’s background and links to extremist networks, alongside examining evidence related to the attack and the alleged pledge to ISIL.