Iran and Israel continued on Sunday their aerial attacks, which began Friday with a series of Israeli strikes on Iran.

"American Forces are maintaining their defensive posture & that has not changed," the chief Pentagon spokesperson said.

Haifa and Tel Aviv struck by Iranian missiles as U.S. embassy in Israel directs government employees and families to shelter in place at home.

Iran and Israel continued to exchange attacks into Monday amid the latest round of conflict between the two nations.

Israeli fighter jets have been seen armed with inexpensive glide bombs. Air superiority means it doesn't need to expend costly stand-off missiles.

The Israel-Iran conflict has escalated into its fourth day with mounting casualties, widening attacks, and no sign of diplomatic resolution.

Israel struck at the heart of Iran’s nuclear, missile and military complex early Friday, in an unprecedented attack that reportedly killed three of Iran’s most powerful figures and plunges the wider Middle East into dangerous new territory.

Stocks are down on Friday, with oil prices surging in the wake of the Israel's military strike on Iran. The S&P 500 slid 48 points, or 0.5%, to 5,998 points in early trading, while the Dow Jones Industrial Average dropped 559 points,