A dead body was discovered in the River Crouch last Tuesday.
The Essex Police Marine Unit was notified that somebody had discovered what he thought was a body on Bridgemarsh Island.
The unit responded with a full range of rescue equipment and together with the force helicopter located the body close to the waterline.
Subsequent to a forensic examination, the team recovered the body utilising specialist skills and equipment to the landing stage at Bridgemarsh marina.
Sgt Andy Ford from the Marine Unit said: "This operation further demonstrates the specialist skills needed to complete this sensitive operation safely.
"There are a number of forensic considerations that need to considered together with logistical hurdles to overcome in order to safeguard the officers deployed and treat the body with appropriate respect in a difficult environment.
"We also thank our partners within HM Coastguard and the RNLI for assisting us in this deployment.”
The body has yet to be identified.
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