The markets have mostly shrugged off Russia's invasion of Ukraine and the Israel-Hamas war. But Israel's conflict with Iran is still in its early days.

Sirens sounded across Israel early Monday warning the population of a fresh barrage of missiles from Iran. The Israeli military said that it was working to intercept the missiles. Israeli authorities have instructed Israelis to take shelter.

"The full strength and might of the U.S. Armed Forces will come down on you at levels never seen before," Trump warned.

The two powers have been exchanging barrages since Israel attacked Iran and killed many of the country’s top military leaders and scientists.

President Donald Trump rejected an Israeli plan in recent days to kill Iran's Supreme Leader Ayatollah Ali Khamenei, two U.S. officials told ABC News. The officials stated that Israel shared with the United States that they had a window to kill Iran's leader but the president was not on board with the plan.

Israel hit more targets in Tehran and Iranian missiles fired at Israel killed at least 14, as the conflict entered a third day

Knesset member Ohad Tal tells Fox News that Israel's strikes against Iran are "saving the entire world" from threat, rejecting President Trump's call for a deal.

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.

It follows daytime attacks from both sides, with Israeli strikes in Tehran continuing and Iran firing more missiles towards Israel.

Israel faced retaliation from Iran after launching missiles against Tehran's leadership and energy infrastructure as part of "Operation Rising Lion" this weekend. Iran's military responded with a wave of missile strikes against Israel,

Discussing the conflict between Israel and Iran, the former vice president said Trump "ought to be looking elsewhere than Vladimir Putin for advice."

Stock futures were mixed on Sunday as investors weighed the impact of the escalating Israel-Iran conflict that shows no signs of any potential off-ramps ahead. Oil prices jumped after Israel attack key areas of Iran’s energy infrastructure over the weekend,