A soldier who died following an SAS training exercise in the Brecon Beacons suffered multiple organ failure, an inquest has heard.
Corporal James Dunsby was pronounced dead in hospital 17 days after collapsing on South Wales's highest mountain on one of the hottest days of the year.
Fellow reservists Edward John Maher and Craig John Roberts also died in the incident.
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Explosives experts were called to the nuclear reprocessing site in Cumbria, to help deal with chemical substances.
The arrests were made on suspicion of producing and disseminating pedophilia content on the internet, the country's Justice Ministry said.
The A4-sized sketch originally went for £75 when it was first sold.