German Defense Minister Boris Pistorius said one participant on a high-level military call on Ukraine intercepted by Russia had mistakenly joined via a nonsecure line and German communications systems had not been compromised. Russia likely intercepted the discussion among senior German Air Force officials by chance via widespread surveillance, Pistorius added while presenting initial results of an investigation into the leak, which has embarrassed Germany and prompted questions about its intelligence security. Russian media last week published a recording of a meeting of the officials discussing weapons for Ukraine and a potential strike by Kyiv on a bridge in Crimea.