investigators have released a handful of photographs to help inquiries .
they show fans rushing to tend to the dying as they lay on football pitch .
police say the people photographed could address unanswered questions .
a home office probe into 1989 disaster which claimed 96 lives is ongoing .
anyone with information is urged to call 08000 283 284 or visit www.operationresolve.co.uk .
anyone who can identify any of the people in the images should call operation resolve on 08000 283 284 or via the website www.operationresolve.co.uk .