Iran said Israel's offensive against Palestinian militants in the Gaza Strip amounts to "organised terrorism".
Iran considers the criminal act of Israeli military forces in killing civilians as organised terrorism and strongly condemns it.
The spokesman criticised what he called "the silence of international organisations claiming to defend human rights," following the strikes.
Today's bombing in Tel Aviv is reminiscent of six years ago and could mark a serious escalation in the conflict.
A truce in Gaza suits all sides but none of the groups seem interested in a long-lasting solution.
A complex system of air defences has been instrumental in protecting Israel's population from incoming rockets.