A police warning has been issued about young people in Rotherham using 'laughing gas'
A number of empty canisters have been found on the streets recently, with South Yorkshire Police warning that inhaling laughing gas - nitrous oxide - can prove fatal.
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A spokesman for the Rotherham Central neighbourhood policing team said: "We have found lots of these canisters lying around the streets. Young people are using these as a means of getting high by inhaling the contents through the mouth.
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"Inhaling just one of these can cause pockets of air in the blood which may travel to the heart and can be fatal."