Iran has deployed a Russian-made S-300 air defense system around its underground Fordo nuclear facility, state TV reported.

Video footage posted late Sunday on state TV’s website showed trucks arriving at the site and missile launchers being aimed skyward. It did not say whether the system was fully operational.

Gen. Farzad Esmaili, Iran’s head of air defense, declined to comment on the report in an interview with another website affiliated with state news. “Maybe if you go to Fordo now, the system is not there,” he was quoted as saying Monday. He added that the S-300 is a mobile system that should be relocated often. […]