Family's fears grow for missing man Martin Crumlish
The family of a man who has been missing for almost a week have said they fear the worst.
Martin Crumlish (26), from Blighs Gardens in Londonderry, and described by police as at high risk, hasn't been in contact since August 4.
His family say his is unusual.
They are becoming increasingly concerned for his safety and have asked the public to help look for him.
A number of sightings of Mr Crumlish have been reported, including one of him walking in the direction of Carrigans in Co Donegal along an area of the River Foyle known locally as The Line.
People have gathered near here to help with the ongoing search effort.
The family say his disappearance is very out of character.
Sister-in-law Donna Moore said they were very thankful for all the help they were getting.
She said: "Martin has been missing since Wednesday, August 8, and while there has been a few reported sightings in Beechwood in Creggan and in the Limavady area, the last confirmed sighting of him was walking down The Line towards Carrigans last Thursday.
"We are just expecting the worst now but still hoping for the best, and are so grateful for all the help we are getting from members of the public.
"It is quite overwhelming to see how many people who have come to help us look for Martin.
"This is the worst time, it is the worst thing for a family to go through, but the help and support we have been getting from ordinary people, from Foyle Search and Rescue and other community search organisations, is really giving us strength."
The PSNI is liaising with the Garda in Donegal in the search.
Farmers living along the border have been asked to check outhouses and barns for the missing man.
The PSNI added: "We are asking all drivers who have a dash cam in their vehicle and were in the area of Foyle Road/Letterkenny Road on Wednesday, August 8 between the hours of 11am and 5pm to check their cameras for any sighting of Martin."
It is believed that he was wearing tracksuit bottoms and a coat.
He is 6ft 1in, of slim build and has brown hair.
If you have any information, call the PSNI on 101, quoting reference number 25 of 10/08/18.