Trump has warned Iran that the U.S. could set the country 'back to the stone ages,' including targeting power plants and bridges.
Israel has attacked a major petrochemical plant in Iran's South Pars natural gas field and killed a top Revolutionary Guard commander.
Israel’s defense minister says the military killed top Iranian security official Ali Larijani in an overnight strike.
His first statement since his appointment was read on state television Thursday by a news anchor.
Iran has attacked commercial ships across the Persian Gulf and targeted Dubai International Airport.
In addition to striking Tehran on the fifth day of the conflict, Israel hit the Iranian-backed Hezbollah militant group in Lebanon.
Qatari Foreign Ministry spokesman Majed Al Ansari vowed that Iranian attacks on the gas-rich country “will not go unanswered.”
The briefing comes as the conflict has intensified into a wider war in the region.
The assassination of the second leader of the Islamic Republic, who had no designated successor, would throw its future into doubt.
President Trump did not offer any details about what the help would entail.