Police say a baby who died in Oldham was "barely three weeks old".
A 55-year-old woman has been arrested on suspicion of causing death to a child by overlaying.
This is an absolutely tragic case in which a baby who is barely three weeks old has died.
Any death of a baby is always extremely upsetting and keenly felt by family members and even the wider community.
An investigation is under way and we are committed to identifying how and why this baby died.
We also have officers supporting family members at what is clearly a very distressing time for them.
More top news
Over 2,000 People's Climate March protests have taken place in 166 countries ahead of a major UN conference on climate change.
On English votes for English laws Ed Miliband is damned if he does and damned if he doesn't.
School fees, pricey private medical care and the fear of interest rate rises mean even those on £200,000 are feeling the pinch.