Israel-Iranian missile exchanges prompt Trump to call for immediate negotiations "before it's too late," revealing divisions among Republicans and Democrats on Middle East policy

Donald Trump torpedoed a joint G7 statement on the Israel-Iran conflict, according to senior US officials, as world leaders met in Canada on Monday. The agenda for the long-planned summit has been hastily updated to reflect cross-border barrages fired by Iran and Israel and concerns about a wider war.

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

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

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

Iran's strikes on Israel are self-defense and are "proportionate defensive operations directed exclusively at military objectives and associated infrastructure," Iran's U.N. Ambassador Amir Saeid Iravani told the U.