Gardai have reportedly identified a person of interest.
Park runners in the Republic and the North have today held moments of silence to remember Ashling Murphy.
The 23-year-old primary school teacher was found dead after going for a jog in Tullamore, County Offaly.
Gardai have carried out searches in Tullamore and Dublin today - and have reportedly identified a person of interest.
These runners say she was just out for a run: