De oudste 'bron' die ik kan vinden is van 10 juli.
https://t.co/Jkco0Gj1pj
The oldest "source" that I can find is on 10 July.
https://t.co/Jkco0Gj1pj
Concerned Dutch citizen

https://t.co/EcJuRHLSPg
Concerned Dutch citizen

https://t.co/EcJuRHLSPg