Iran threatens retaliation after what it calls possible cyber attack on nuclear site | Reuters

Iran has made it clear in a statement that they will retaliate against any country that participates in cyber warfare targeting their country. The UN’s International Atomic Energy Agency analyzed the fire and stated that the location of the fire did not contain nuclear materials. Some are suspecting that this was carried out by either Israel or the United States.  

Source: https://www.reuters.com/article/us-iran-nuclear-natanz/iran-threatens-retaliation-after-what-it-calls-possible-cyber-attack-on-nuclear-site-idUSKBN2441VY