A teenager who is believed to have taken "laughing gas" at a party has collapsed and died.
The 18-year-old man collapsed in the street in Bexley, south-east London, at around 11:18pm on Saturday night.
The Metropolitan Police were contacted by the London Ambulance Service and arrived to find the man in cardiac arrest.
The teenager was taken to a south London hospital in a critical condition and died two hours later.
Nitrous Oxide bulbs are used as a recreational drug and is not illegal for over 18s to use
The Met said the teenager is believed to have ingested nitrous oxide, known as “laughing gas” or “hippie crack” and alcohol at the party.
“At this stage the death is being treated as unexplained pending the findings of the post-mortem,” a Met spokesperson said. The next of kin have been notified.
The sale of nitrous oxide to teenagers under the age of 18 is illegal in England and Wales if there is a risk they will inhale the substance, though it is not illegal to be in possession of nitrous oxide.
Seventeen people in the UK died between 2006 and 2012 after taking the legal high.
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Additional reporting by Press Association
