The search for a County Donegal man who has been missing since escaping from PSNI custody has widened.
David Colhoun, 22, from Lifford was arrested in Strabane on 22 May for minor offences.
The search involving police on both sides of the border and Foyle Search and Rescue has so far concentrated on the River Mourne near Lifford Bridge.
It will be widened over the coming days.
Police said the search will continue until Mr Colhoun is found.
His father Joe said he feared that his son drowned in the river.
In a statement issued by police on Wednesday he thanked everyone involved in the search to date.
The PSNI said it has assured the family that it will continue to respond to fresh information and offer assistance and support in "difficult circumstances".
Mr Colhoun is described as being 5ft 10in tall, of slim build with fair spiky hair and when last seen he was wearing a navy hooded top with white lettering on the front and dark tracksuit bottoms.