S-300 defence system now 'operational': Iran

Iran's advanced S-300 air defence system, delivered by Russia following a July 2015 nuclear deal after years of delay, is now operational, state television reported yesterday. The deal to buy the S-300 system was originally signed in 2007 but Russia suspended it in 2010 citing a UN ban on arms sales to Iran. It was revived after the nuclear deal between Iran and major powers went into effect in January last year.