A man died after sustaining serious injuries in an industrial incident at Portsmouth port.
Paramedics from the South Central Ambulance Service attended the site in Flathouse Quay at 6.44pm on Friday, August 25.
A 34-year-old man was pronounced dead at the scene.
Hampshire Police said: "Our officers, together with the Health and Safety Executive, are conducting a joint investigation into the circumstances surrounding the man's death."
They added: "A 35-year-old man from Sussex has been arrested on Sunday, August 27, on suspicion of perverting the course of justice and theft in connection with this investigation."
A spokeswoman for Portsmouth International Port said the man was an employee of MMD Shipping Services.
The director of MMD, Mike Sellers, said: "Our thoughts are with the family and loved ones affected by this tragic incident.
"This is also a distressing time for staff and we are providing support for everyone involved.
"We are also working with the police and Health and Safety Executive to support their inquiries and any further investigations."
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