A man has been arrested in connection with an on-going investigation into the murder of Irene White.
Irene White was fatally stabbed in her home in Dundalk on April 6, 2005.
She was 43-years-old and had three children.
Her body was discovered by her mother at the back of the house with a number of stab wounds.
A man in his 30's was arrested in Co Monaghan this morning in connection to the murder.
He is currently being detained at Dundalk Garda station under provisions of Section 4 of the Criminal Justice Act, 1984.