An 18-year-old believed to have taken laughing gas at a party has died.
He was taken to hospital after he collapsed in the street in Bexley, south-east London at around 11.18pm on Saturday but died two hours later.
Police said the teen is believed to have attended a party where he may have been drinking alcohol as well as ingesting legal high nitrous oxide.
He was in cardiac arrest when officers arrived at the scene in Wolvercote Road.
The Metropolitan Police said: 'Next of kin have been notified. A post-mortem will be scheduled in due course.
'At this stage the death is being treated as unexplained pending the findings of the post-mortem.'
The gas can make people feel relaxed, euphoric and giggly, leading to the nickname laughing gas. It is usually inhaled through balloons.
Abusing nitrous oxide can lead to oxygen deprivation resulting in loss of blood pressure, fainting and even heart attacks.
Source - Metro
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