"We do not comment on this," Netanyahu’s spokeswoman told RIA Novosti.
Russia and Iran signed a $900-million contract in 2007 amid opposition from Israel and the United States. The deal was suspended after the UN Security Council imposed sanctions on Iran in mid-2010.
In April 2015, Russia resumed talks on S-300 deliveries following a framework agreement on a landmark pact that aimed to ensure the peaceful nature of Tehran’s nuclear program.
Israel, in turn, criticized Russia’s decision to go ahead with arms deliveries to Iran, saying that it would further destabilize the region.