russia is stopping a surprise to bulgaria and poland so as well as this military conflict, it seems we re to have an energy while as well. the head of the international atomic energy agency has visited the dis used chenobyl nuclear power plant, and said the risk of an accident when russian soldiers were in charge had been serious. russian troops took over the site on the first day of the invasion of ukraine and stayed there for several weeks. workers told the bbc they were forced to steal fuel to keep generators working and prevent a dangerous leak of radioactive material. our eastern europe correspondent, sarah rainsford, travelled with the iaea and sent this report. the road to chernobyl is littered with the wreckage of war. this was a route taken by russian tanks as they advanced on kyiv. it cuts right through the contaminated zone, around the world s worst ever nuclear disaster,