The police and ambulance service were sent out to a Sheffield nightclub, after a man reportedly collapsed.
The man took ill while at Reflex in Holly Street, Sheffield city centre at around 10pm last night.
An eye-witness said: “A man was laid on the floor, paramedics were attempting to resuscitate him.”
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A South Yorkshire Police spokesman said the force attended at Reflex for what they described as a ‘medical’ incident, but said they could not provide any further information.
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Yorkshire Ambulance Service have been contacted for comment.
More to follow.