TEHRAN (AFP)
Loud explosions rocked Tehran on Monday as Israel said it struck targets in the city, escalating tensions a day after US air strikes on Iran's nuclear facilities.
Iran, in turn, fired missile barrages at Israel and vowed retaliation against the US, as both sides intensified attacks on the conflict's 11th day.
An Iranian news agency said Israel struck Fordow -- a key nuclear enrichment facility buried deep in the mountains south of Tehran. The previous day, the US hit the site with "bunker buster" bombs.
The Israeli military said it had struck missile sites in western Iran, and unspecified "military targets" in the capital.
Iranian media said Israel's strikes hit a power supply system in Tehran, triggering outages.
In Israel, the national electricity company reported "damage near a strategic infrastructure facility" in the south that disrupted power supply, without naming the location or specifying the cause.
Sirens were sounded across Israel and blasts were heard over Jerusalem.
Israeli strikes on Iran have killed more than 400 people, Iran's health ministry said.
Iran's attacks on Israel have killed 24 people, according to official figures.