Moment dog pulled from 20m-deep culvert after 40-hour operation using thermal imaging

Martha, a two-year-old English bull terrier disappeared inside the drainage tunnel in Black Carr Woods, Pudsey, while out on a walk with her owner Paul Millicent around 4.30pm on Friday 17 March.She was eventually brought to the surface at about 9.30am on Sunday - more than 40 hours later - after being located 20 metres (65 feet) down by thermal imaging and she was dug out by an excavator which worked through the night to reach her. Source: RSPCA (England & Wales)