The A66 is closed in both directions at Middleton Tyas near Richmond in North Yorkshire after a lorry overturned and shed its load of hazardous material into a field. The driver wasn't hurt.
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Former Police Inspector Harry White told the inquests that he was told that fans entering the terraces should "find their own level."
A former police inspector has told the inquests he realised fans entering through an exit gate would head towards already crowded pens.
The man is thought to have tied himself to the bottom of the vehicle as it travelled from Calais to Kent.