Hundreds of people, including rescue experts and volunteers, have been involved in ongoing searches for him along the border and across Inishowen.
Brother of missing John Concannon makes emotional plea
“It is very soul destroying to be honest. It’s never out of our minds and it’s wearing us all down. It’s been an emotionally tough time.”
Foot searches continue for missing Derry pensioner
Cross-border search to find 71-year-old John Concannon intensifies