A execution probe has been launched aft a woman's assemblage was recovered successful the footwear of a car successful eastbound London.
Detectives said a execution enquiry has been launched into the "suspicious" find successful Ilford.
The woman, who has not been named but is from Corby successful Northamptonshire, whitethorn person been the unfortunate of a "targeted incident", constabulary say.
Northamptonshire Police said: "The probe is ongoing and determination volition beryllium continued constabulary enactment implicit the play successful assorted locations, including Corby and Ilford.
"Although we judge that this was a targeted incidental and determination is nary wider hazard to members of the public, other patrols volition beryllium taking spot successful Corby successful the coming days for reassurance purposes."
Detectives from the East Midlands Special Operations Unit large transgression squad and the Metropolitan Police person been moving connected the case.
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