A woman in the UK remains at the centre of a massive search operation, five days after she was last seen.
The mystery has deepened in the days since her disappearance after her phone was found three days later - still on an active work call.
Nicola Bulley, a mortgage advisor and mum-of-two, disappeared after being spotted walking the family dog Willow on the footpath of a river at 9.15am on Friday.
