If you enable the subtitles, it says Flemish.

Took another listen:

“Hebde da gezien”

“Wa is er gebeurd?”

“Hebde da gezien, wa die gedaan heeft?”

It’s perfect dialect, which surprises me, but after this it seems to devolve into gibberish. I can’t make too much out of it, besides French being thrown in, which for our country is, again, spot on, since we are divided bilingually.

“Veld” also means “field”. it’s such a generic name to give a town, but plausible.