ナイジェリア：学校が崩壊して児童生徒22名が死亡

　原因は定かではない。しかし

「The cause of the collapse is not known but residents said it came after three days of heavy rains in Plateau.」

　強い雨が三日も続いていた―というので、地盤から建物躯体から、何かしら浸食劣化したものか。

BBC Children killed in Nigeria school collapse 5 hours ago
By Chris Ewokor

　現場はナイジェリア中部、プラトー州。

「Twenty-two children have died and more than 130 have been injured after a school building collapsed in Nigeria’s central Plateau state, local officials say.

Saint Academy in the state capital Jos caved in while students were in class on Friday morning. Children were left trapped under the debris.

Volunteers used excavators, hammers and their bare hands to break through the piles of concrete and twisted iron rods to reach many of those trapped.

Police told reporters that at least 22 children had died in the collapse, with many more receiving treatment in local hospitals.」

　金曜、試験日で―微妙な危険の兆候も見逃されたかもしれない。というか、ふつう、こんなもろっと壊れるなんて思わないだろうしなあ…。