The Worst Diving Accident in History – The Paria Diving Incident [video]

On 25 February 2022, at around 15:00, five divers became trapped in a Paria Fuel Trading Company oil pipeline near Pointe-à-Pierre while making repairs to the pipe.

Unbeknownst to the divers, differential pressure had been created when the pipe was cleared of oil nearly a month earlier. While the divers were removing an inflatable plug, they got sucked into a vortex that pulled them into the oil pipe.

Christopher Boodram [the only survivor] was able to escape by crawling down the pipe for around three hours.

    Paria [company] admitted they had no rescue plan, 
    citing that they had 'no legal responsibility to rescue the men'

    Further external attempts to save the men were reportedly
    blocked by Paria with arguments being made that the divers could not be
    rescued safely. 

    In November 2023, the Commission of Enquiry found that
    "Paria's negligence could be characterised as gross negligence and
    consequently criminal". They recommended that the Director of Public
    Prosecutions "consider charging Paria with what is commonly known as
    Corporate manslaughter." 

    In September 2024, charges were filed against the managers of Paria,
    and Land and Marine Contracting Services Ltd., a company contracted 
    by Paria to repair the pipeline.

ref: https://en.wikipedia.org/wiki/2022_Paria_Diving_Disaster