CLEAN : Suspect device found in Stockholm killer truck: Swedish police

The transcript discusses an incident involving a 39-year-old man from Uzbekistan. A technical device was found in a truck, and an investigation is underway to determine its nature. The police are exploring the possibility of additional individuals being involved. Four people have been confirmed dead, and 15 injured.

What are the possible implications of the technical device found in the truck?

What is the current status of the investigation into the incident?