I only take CNN rticles because I don’t want to translate the more accurate articles from VRT. I know CNN isn’t actual and accurate.
But, I think the media is exagerating. I mean, hundreds died yesterday in Irak, hundreds daily in Sudan, and today hundreds died in Asuncion, Paraguay. But still yesterday the first headline was the gas explosion in Ghislenghien.

Latest updates: 16 killed, 4 missing (probably burned and lost). Bodies had to be identified by DNA.
A probably cause: construction work at a road nearby the crater caused the leak. Not confirmed!
Yesterday a pipeline of 11 meter long weighing 1 ton was found 200 meters from the crater. The army transported it somewhere unknown for investigation.