A woman's body has been found in a suitcase hidden among trees near a sports ground in Thornfield Avenue, north London, Scotland Yard said.
The area has been cordoned off. A Metropolitan Police spokesman said a post-mortem examination will be arranged in due course.
The woman, who has been described as a young adult, has not yet been identified.
More top news
The family of a father-of-three from East Ham have made a fresh appeal to catch his killer 20 years after he was murdered.
The Metropolitan Police has paid £45,000 in damages in an out-of-court settlement following the 'unlawful arrest' of a black motorist.
John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.