In Tehran attacks, Israel’s Defense Ministry said it hit targets that included the notorious Evin Prison in the Iranian capital and the security headquarters of the paramilitary Revolutionary Guards.

Israel struck Evin prison in northern Tehran on Monday, a potent symbol of Iran's governing system, in what Israel called its most intense bombing yet of the Iranian capital a day after the United States joined the war.

Iran's underground enrichment site at Fordo, which was one of those hit in Sunday's attack by the US on three nuclear facilities, was also struck again on Monday, Iranian state television reported.

Israel continued to strike Iran's military infrastructure but is looking to wrap up its war with Iran soon, officials said. Follow along for live news, updates and analysis as the Iran-Israel conflict develops.

The United States decisively entered into conflict with Iran on Saturday after President Donald Trump ordered US warplanes to drop massive bombs on three nuclear sites inside the country, thrusting him squarely into an escalating Middle East conflict even as he holds out hope the matter can be resolved diplomatically.