Jiyar Gol
BBC Persian
Numerous explosions have been heard in Tehran and number of cities across Iran.
The office of Iran's Supreme Leader and the presidential office in Tehran were also reportedly targeted.
Military sites have been targeted in Kermanshah, Qum, Isfahan, Tabriz, Karaj and as well as at Iranian naval facilities in Kenarak in the south of the country. A video we have received from the small city of Kamyaran in Kurdish region, shows an IRGC base is bombed.
The Israeli Defence Force warned Iranian civilians to evacuate areas near military sites and installations ahead of the strikes.
There are images from Tehran shows that a residence in Narmak neighbourhood of Tehran, where former president Mahmoud Ahmadinejad lives, has been hit. It is not clear whether the former president is hurt.