A man arrested in relation to the murder of Tina Satchwell has been released from custody.
Gardaí had upgraded her missing persons case to a murder inquiry yesterday.
The Cork woman disappeared in 2017.
A man in his 50s was being questioned at Cobh Garda Station, but has now been released without charge.
Specialist Gardaí continue to search a house and garden in Youghal in connection with the investigation.