DUBAI (Reuters) -Several loud explosions were heard in Iran's capital Tehran and the nearby city of Karaj early on Saturday, semi-official Iranian media said, adding that the cause was unknown. Iran's state TV said several strong explosions were heard around the capital, but there was no official comment about the source of the explosions.

State television notes hearing 6 loud sounds resembling explosions in parts of capital, with source of noises currently unverified - Anadolu Ajansı

Israel launched its first wave of retaliatory strikes on Iran early morning. Multiple explosions were reported across Tehran and Karaj cities and also in Iraq and Syria. Some Israel media reports claimed that IRGC HQ in Tehran was hit.