Israel's strikes on the headquarters of Iran's state television in Tehran killed three people, the broadcaster said on Tuesday, a day after the attack.
"Three of the TV station's employees were killed and others were wounded in the Israeli attack" on Monday, the channel announced, without specifying the number of people hospitalised.
The conflict began on Friday when Israel launched predawn strikes that hit more than 100 targets, including nuclear facilities and missile sites, and killed senior military commanders and scientists.
That attack set off an escalating series of tit-for-tat exchanges, raising fears of a wider, more dangerous regional war. Residential areas in both countries have suffered deadly strikes since the hostilities broke out