Five people have been arrested after police discovered what they believe to be human remains of a young baby.
Officers said those detained, aged between 20-70, were held on suspicion of concealing a death and unlawful burial.
They have all been bailed pending further enquiries.
The investigation, prompted by welfare concerns, is focused on an address in Marsh Green, Wigan, and a location on Valley Road in Pemberton.
Chief Superintendent Clare Jenkins from Greater Manchester Police’s Wigan district said: “This is a truly heartbreaking discovery, and I do not underestimate the impact that this news will have on the local community.”
Addressing the local community, she said: “I would like to reassure you that we have several teams of officers and specialist resources working diligently to find answers.
“You will likely notice an increased presence of our officers throughout the next week, if you have any concerns or want to share any confidential information, please do not hesitate to speak to them.”
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She added: “In the coming days we will know more about the circumstances surrounding this incident, but we are confident that this is isolated, and there is no threat to the wider public.”
