Trump tells Tehran residents to immediately flee

US President Donald Trump on Monday called for an exodus from Tehran in a major escalation to the Iran-Israel conflict which was entering its fifth day.

"Iran should have signed the 'deal' I told them to sign. What a shame, and waste of human life. Simply stated, IRAN CAN NOT HAVE A NUCLEAR WEAPON. I said it over and over again!" Trump said in a post on Truth Social.

"Everyone should immediately evacuate Tehran!" he added.

"AMERICA FIRST means many GREAT things, including the fact that, IRAN CAN NOT HAVE A NUCLEAR WEAPON. MAKE AMERICA GREAT AGAIN!!!"

Trump was set to depart a G7 summit in Canada to address the crisis, White House spokeswoman Karoline Leavitt wrote on X.

"Because of what’s going on in the Middle East, President Trump will be leaving tonight after dinner with Heads of State."

Israeli Defense Minister Israel Katz said earlier on the day that while Israel does not aim to harm civilians, residents of Tehran must evacuate areas near government and military sites that could be targeted.

An illustrated depiction of the Tehran evacuation zone published by the Israeli military encompassed an area around 30 square kilometers, an area home to several hundred thousand people.