BBC News updated:
"Two Air Training Corps cadets and their RAF trainers have been killed in a mid-air crash between two light aircraft near the south Wales coast.
The cadets were teenage girls, thought to be related. They died after a collision near the seaside resort of Porthcawl just before 1100 GMT."
Hopefully they can find out how this happened and prevent it happening again. The AEF has run without major incident for so long, it really would be a shame to see it affected for the future.