I lost my Blue Quecha 16L backpack in Brussels midi

• Gadget Type : Smart Watch
• Model : Dell XPS13 laptop,
• Brand : Other
• Color : Silver
• Police Complaint? : No

I lost my Blue Quecha 16L backpack on 22/09/2023 (19:20-19:30) which contains Dell XPS13 laptop, Serial number: 4FGWTT3, a WD elements 1TB hard disk drive. The hard disk is extremely important to me and has backup of my whole career's work. 

The backpack was stolen from Thalys train while it stopped at Brussels midi.