article_snippet: But many fans headed straight for the tunnel under the seated upper stand and leading directly to the already-packed central pens of the terrace behind the goal.
article_snippet: the tunnel was not closed off by police beforehand and the numbers of fans in each pen was not restricted - with police and club officials having a policy of allowing supporters to ‘find supporters own level’ by distributing supporters along the terraces.
highlights_snippet: But many headed straight for tunnel  towards already-packed lower terrace .