Ukrainian firefighters work to put out a fire at energy infrastructure facilities, damaged by Russian drone strike. Photo: State Emergency Service of Ukraine/Handout via REUTERS Iran is dodging sanctions by building the drones it supplies to Russia using US technology which is available on the web. Intelligence reports have highlighted the crude nature of the Shahed-136 kamikaze drones (inset below) and the Mohajer-6 surveillance drones used by Russia. The reports emerged as a Ukrainian air force spokesman said that more than 300 Iranian unmanned aerial vehicle (UAVs) have been shot down since their introduction to the battlefield little over a…