Israel and Iran traded strikes for the third consecutive day on Sunday, following Israel's attacks on military and residential buildings and nuclear sites in Iran on Friday.
Iran's retaliatory strikes on Israel overnight killed at least 10 people. Six of them were killed in a missile strike in Bat Yam, near Tel Aviv on Israel's Mediterranean coast.
In the north of Israel, a three-storey building was destroyed in a strike in the town of Tamra, killing four women and taking the overall death toll in the country since Friday to 13.
In Iran early on Sunday, a series of blasts were heard in the capital Tehran.
Israel said its forces had struck the defence ministry headquarters. The ministry did not comment but the Iranian news agency Tasnim reported damage.
The Israeli military also said it had struck nuclear sites including the secretive Organization of Defensive Innovation and Research (SPND), fuel tankers and other targets.
The Iranian oil ministry said Israel struck two fuel depots in the Tehran area.
Iran's UN ambassador said 78 people were killed and 320 wounded in Friday's first wave of Israeli strikes.
Iranian authorities have not provided an updated toll as of early Sunday, but Tehran says Israel has killed top army commanders and nuclear scientists.