Audio reveals exchanges between control centre and drivers before deadly Spain train crash
By BBC - WorldThe recordings appear to show one high-speed train was given clearance to move even though another up ahead had stalled.

Signal file
The recordings appear to show one high-speed train was given clearance to move even though another up ahead had stalled.
What happened
The recordings appear to show one high-speed train was given clearance to move even though another up ahead had stalled.
Why it matters
Signal detected. Tactical summary established.
Source context
The recordings appear to show one high-speed train was given clearance to move even though another up ahead had stalled.
Signal note: This is a live source-backed signal file. The sections above are the published story brief generated from available source material.
DECLASSIFIED SOURCE: BBC - World