UK police plead for help over Nigerian boy's torso found in Thames in 2001

FILE PHOTO: Detective Inspector Will O'Reilly (L) and John Azah of the Independent Advisory Group place a wreath in the River Thames at the place where the torso of a boy, who police have called 'Adam', was found a year ago, September 21, 2002. A minutes silence was observed at a memorial service held in City Hall before the wreath laying. REUTERS/Peter Macdiarmid/File Photo

LONDON (Reuters) - Police in London appealed on Tuesday to anyone with information about the murder of a Nigerian boy whose torso was found in the River Thames 20 years ago to come forward to help them solve the case, which they believe may have been a ritualistic killing.

The boy was aged five or six when his body, which had had the head and limbs severed, was found floating near Tower Bridge. Police believe he was trafficked from Nigeria to Britain, possibly via Germany.