It comes after Iran struck Tel Aviv on Friday.US President Donald Trump has threatened that the US will respond

US president issues chilling and unequivocal threat to Tehran in staggering intervention in Middle East crisis

Speaking on the conflict between Israel and Iran, Donald Trump threatened Iran with 'levels never seen before' if it hits anything American.

Washington and Tehran have held five rounds of talks since April as Trump seeks an agreement that would place constraints on Iran’s uranium enrichment. He has threatened to attack Iran if no deal can be agreed. Defence Minister Aziz Nasirzadeh said on Wednesday that Iran would target US military bases in the region if the US attacked it first.

Iran originally planned to launch 1,000 missiles at Israel but was unable to due to damage from Israeli strikes, The New York Times reported

Nuclear talks between Iran and the US won't happen today, as originally planned, and Donald Trump has threatened to respond in a way "never seen before" if their bases are attacked

The death toll grew Sunday as Israel and Iran exchanged missile attacks for a third consecutive day, with Israel warning that worse is to come. Israel targeted Iran’s Defense Ministry headquarters in Tehran and sites it alleged were associated with Iran’s nuclear program,