Iran has fired hundreds of ballistic missiles at Israel amid heightened tensions between two regional arch-rivals.
The attack started around 8.15 p.m. local time (1645GMT) on Tuesday. Iranian media said at least 400 missiles had been launched so far.
In a preliminary statement, the Islamic Revolutionary Guard Corps (IRCG) said the attack was in response to the assassination of Hamas leader Ismail Haniyeh, Hezbollah leader Hassan Nasrallah, and IRGC Commander Abbas Nilforoshan.
Haniyeh was assassinated in Tehran last month. Nasrallah was assassinated in Beirut on Friday along with Nilforoshan.
The guard corps warned that if Israel responds to the missile barrage, it will face more “crushing attacks.