Officers from the Underwater and Confined Space Search Team are attempting to remove the body of an adult from an ornamental well in a garden in Surrey.
Police said the process is likely to take some time as the positioning of the body in the four-foot deep well presents a number of logistical challenges".
Seven men were arrested on suspicion of murder this afternoon and are still being questioned by police.
More top news
Tonight a band of cloud and rain will spread into Scotland and Northern Ireland.
Greenpeace has obtained leaked documents which reveal how much the US has been pushing the EU on the TTIP trade agreement.
Appeals court clears the way for case against U.S. Army Sergeant and former Taliban prisoner Bowe Bergdahl to resume.