The Yorkshire Air Ambulance was called out to a suburb of Sheffield earlier this evening.
An eyewitness told how it landed in a field opposite Westwood New Road, near Thompson Hill, in High Green at about 6.30pm.
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She added that it flew off less than 10 minutes after landing.
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The emergency services have not released any information about the incident yet.
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We have contacted the Yorkshire Air Ambulance and South Yorkshire Police and will bring you updates when we get them.