Search teams continue efforts to find missing 77-year-old man in Porirua

Search efforts continue for a missing 77-year-old man in Porirua after a Westpac helicopter using thermal imaging could not locate him. Graham Russell Smith was last seen on Sunday evening while walking on the Colonial Knob walkway. Four search teams, including Land Search and Rescue, are actively searching the area. Police are investigating several reported sightings and have asked local workers and residents to check their properties for any signs of Smith. Smith is described as 165 cm tall, of slight build, wearing a blue puffer jacket and brown corduroy pants. He may be suffering from dementia and has difficulty hearing. Police urge anyone with information to call 111.