A couple questioned for 36 hours over the death of a 13-month old toddler in Preston have been released on bail.
The man and woman, both aged 25, were arrested on Thursday on suspicion of murder, five days after youngster Aiden Jonathan Gary Cairns was pronounced dead at the Royal Preston Hospital following a 999 call to a flat in Church Street.
The pair were freed on Friday night “pending further enquiries.”
A police spokesman said: “An investigation continues into the circumstances and the death is being treated as unexplained.
“A post mortem examination has been carried out but the exact cause of death is unascertained at this stage.”