The family of missing Derry man Eamonn Moore say they were becoming increasingly worried for his safety.
The 21-year-old, from Jefferson Court in the city centre, has not been seen since he left his apartment on Saturday morning.
It is understood that his family received what they regarded as worrying texts from him at the time.
On Monday, relatives, the police and Foyle Search and Rescue carried out searches along the river Foyle.
His Uncle, Liam Healy, made this appeal on today's Shaun Doherty Show......