Tests are continuing to try to establish why a nine-week-old baby boy from Barnsley died.
The baby, who has not yet been named, died in hospital on Monday, December 3 – three days after suffering a cardiac arrest at a property in Great Houghton, Barnsley.
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The death was initially treated as unexplained but following a post mortem examination it is now being treated as suspicious.
A 29-year-old man was arrested on suspicion of murder and later bailed pending further enquiries.
South Yorkshire Police said ‘further tests remain ongoing and enquiries are continuing’.