CONFLICT ENTERS FOURTH DAY: Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Since Israel began its concerted attack on Iran on Friday, calls for regime change in Iran have grown louder – from hawks in the US Congress to Israeli officials and some Iranian activists abroad.

At an economic summit of world leaders in Canada Monday, President Trump weighed in on the Israel-Iran conflict, telling reporters Iran would "like to talk, but they should have done that before."He told reporters as he met with Group of Seven summit host Prime Minister Mark Carney that Iran has "to make a deal.

The initial round of Israeli attacks sent oil prices 7 percent higher on Friday. Still, at about $74 a barrel, Brent crude remains below the $80 average for 2024, the Deutsche Bank analysts wrote. The market continued to waver, though, and by Monday, oil prices had fallen about 3 percent.

Israel struck buildings in Tehran belonging to the Islamic Republic of Iran Broadcasting, or IRIB, Iran's state-owned media company, with the blasts seemingly heard live on television hours after the Israeli military said residents and workers in that part of the capital should leave.

TREY YINGST, FOX NEWS: 65 total missiles were fired at Israel overnight. The Israelis struck back, killing the head of Iran's intelligence agency and his deputy. The Israelis also say they have taken out one-third of ballistic missile launchers.

Hundreds of civilians, mostly in Iran, have been killed by dueling airstrikes despite international pleas for de-escalation.

President Trump rejected an Israeli plan in recent days to kill Iran's Supreme Leader Ayatollah Ali Khamenei, a senior U.S. official told USA TODAY.