Five students were fined by police.
The accident happened at a fair in Ciudad del Carmen, Mexico, on Friday night during the event's second day of activities.
The 79-year-old had headed out into dense woodland near the remote village of Pilvo on Russia's Sakhalin Island.
'We didn’t think we could be any more shocked at their appalling treatment, but in this case we are absolutely flabbergasted.'
The breakthrough came after researchers studied images from NASA's Hubble Space Telescope, along with new observations from the powerful James Webb Space Telescope.
Anoosheh Ashoori,a former Iranian prisoner who spent five years in the notorious Evin jail (Picture: Anoosheh Ashoori/PA Wire)
Some of the units are advertised as having been 'designed by former Nasa engineers'.
'This is one of the most distressing cases our Inspectors have encountered. No animal should ever suffer or be treated in this way.'
'There were questions of the bomb squad being involved.'