In this handout video grab released by the Russian Emergencies Ministry, an emergency handler works with a search and rescue dog to locate people trapped under the rubble at the site of a damaged apartment block where two sections of a five-storey building collapsed following a suspected gas explosion in Nizhny Tagil, Sverdlovsk region, Russia. According to latest reports, at least twelve people were injured, including six children. Editorial use only, no archive, no commercial use.