Iranian missiles struck Israel's Tel Aviv and the port city of Haifa before dawn on Monday, killing at least eight people and destroying homes, prompting Israel's defence minister to warn that Tehran residents would "pay the price and soon".

The military exchanges worsened between Israel and Iran overnight on Monday as strikes hit residential areas, killing and wounding civilians on both sides.

The exchange of fire comes as talks on Iran's nuclear program in Oman between the U.S. and Iran were called off.

Trita Parsi, vice president of the Quincy Institute for Responsible Statecraft, has insisted that Israel underestimated the Iran's ability to regroup

Israeli skies were streaked with a barrage of Iranian missiles yet again on Sunday amid a spiralling conflict between the two nations. "Iran missiles incoming, sirens heard in Jerusalem," the Israel army said,

Israeli emergency services have said at least two people were killed in the strikes and dozens of people are injured.

Regional tension has escalated since Friday after Israel launched coordinated airstrikes on multiple sites across Iran, including military and nuclear facilities, prompting Tehran to launch retaliatory strikes. Israeli authorities said that at least 24 people were killed and hundreds injured in Iranian missile attacks since Friday.

President Donald Trump told ABC News that "it's possible we could get involved" in the ongoing conflict between Israel and Iran. The president made the comments to ABC News' Rachel Scott. He also reiterated that the U.S. is "not at this moment involved" in the conflict.