A 61-year-old man arrested on Monday in connection with the murder of German backpacker Inga Maria Hauser 30 years ago has been released on bail pending further police enquiries.
A second man, aged 58 remains in police custody.
Both men were arrested in the Loughguile area of Country Antrim early on Monday morning.
Inga Maria Hauser was found dead in Ballypatrick Forest in 1988 after going missing when she arrived in Northern Ireland from Scotland.
She had last been seen on a ferry from Scotland 14 days earlier.
The PSNI recently appealed for new information in the case and travelled to Scotland in an attempt to gather evidence.
They said that they were "getting closer" to identifying suspects in the case.