The general belief is that the explosion occurred by contact of the miners' lights with dust when the miners entered this morning.
Ọ sị na ihe kpatara nke a bụ na mmiri ereriela ukwu ụlọ ahụ tinyekwara na ndi ụka dadọra ahụ aja ụlọ ụka ahụ mgbe ha na-aka ụka n'ụtụtụ ahụ.