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Animal Rising protesters stormed the racecourse on April 15 this year, while other activists blocked a nearby motorway. Ten people have been charged over the protests on the roads.
The owner of the world-famous racecourse is taking legal action after Animal Rising disrupted Grand National last month and warned they would disrupt the Surrey meeting on June 3.
The trainer of a horse who died after suffering a fatal fall at Saturday's Grand National has blamed "ignorant" protesters for the death of the prized animal.