Five people, some believed to be children, have been injured and taken to hospital after an inflatable slide was blown away in Ripley in North Yorkshire.
A North Yorkshire Police spokesman said: "Officers have seized the slide and investigations are continuing at the scene.
"The Health and Safety Executive have been informed and are also attending the scene of the incident."
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The man entered the Yousaf Newsagent, in Fraser Street, Burmantofts, and demanded cash on Sunday at around 5.30pm.
The pony, which is thought to be two to three years old, was discovered off Scawby Road in Broughton Vale on Saturday at around 6pm.
ISG says it is pulling out because of the increasing costs and delays caused by a legal challenge