Sniffer dogs and drones are being used to search the rubble for three people still missing after the collapse of a large part of the defunct power station at Didcot in Oxfordshire, but rescuers say they have not picked up any clear signs of life. One person died and five more received treatment in hospital after part of the boiler house at the former coal-fired power station unexpectedly imploded after 4pm on Tuesday. Demolition contractors were working on the site at the time of the incident, but the collapse was unplanned. Safety concerns about the remaining structure are hampering the search for three people who are still missing.

http://www.theguardian.com/uk-news/2016/feb/24/didcot-power-station-collapse-no-clear-signs-of-life-in-hunt-for-missing-three