A fingertip is believed to have been found in an alleyway in Chorley town centre.
Officers cordoned off the passageway close to the Gala Bingo hall, in Market Street, after a member of the public made the grim discovery this morning.
A crime scene investigator, dressed in a full white body suit and mask, was drafted in to remove the alleged body part from the alleyway, and tests are underway to establish whether it is indeed a fingertip.
A broken bottle and blood is also believed to have been found at the scene and a full investigation is now underway.
* If you have any information, contact Natalie.Banks@lep.co.uk