Murder-squad detectives investigating the death of Bradford businessman Nissar Ahmed today identified five more sites believed to contain human remains.
Searches were due to be carried in West Vale, Elland, and two at Copley, near Halifax. Another site has yet to be named by police.
At one of the sites in Copley, the underwater search team was brought in earlier today to carry out a search of a canal.
Mr Ahmed's severed leg and intestines were found by an off-duty police officer walking her dog in woodland off Briestfield Road, Dewsbury, last Friday. The limb was discovered in two supermarket carrier bags. About 6ft away was a white bin liner containing his intestines.
The father-of-six, of West Bowling, was identified by his family from a scar on his leg.
He was last seen in the early hours of Friday morning in Manningham.
Mr Ahmed's car was found dumped in Rufford Street, Bradford Moor, Bradford, on Tuesday.
A 25-year-old Cleckheaton man has been arrested by police and is being questioned at Dewsbury police station.
More human remains were found yesterday in the villages of Lepton and Holme, near Huddersfield.
A West Yorkshire Police spokesman said: "Inquiries have continued and we have now identified further scenes where we believe there are body parts.
"The other sites are at Copley, near Huddersfield, and West Vale and Elland, near Halifax.
"Police will be continuing their searches today."
Mr Ahmed owned the Sultan restaurant in Holmfirth, near Huddersfield. His family have a number of business interests, including a restaurant in Lumb Lane and two hairdressers.
A former pupil of Belle Vue Boys' School, Mr Ahmed leaves a wife, and three boys and three girls - all aged under 18.
Anyone with information about the death of Mr Ahmed is asked to contact detectives at the incident room on (01924) 431081.
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