Gardaí will resume searching marshland in Dundalk this morning as they investigate the disappearance of Ciara Breen.
She went missing when she was 17 - almost 20 years ago - in February 1997, and hasn’t been seen since.
officers began a fresh search in an area known as Balmer's Bog Yesterday .
A man in his 50s was arrested in relation to the case last April, but released without charge.
Gardai received two anonymous letters following local and national appeals for information, and say the new search is just one line of inquiry.