Turkey is ready to play a "facilitating role" to end the conflict between arch foes Israel and Iran, President Recep Tayyip Erdogan told his Iranian counterpart in a phone call on Monday, his office said.

During the call with Iranian President Masoud Pezeshkian, Erdogan said: "Turkey is ready to play a facilitating role for the immediate end of the conflict and return to nuclear negotiations," according to his office.

Iran on Monday accused Israel of targeting a hospital in the country's west, condemning it as a "war crime".

"Farabi Hospital in the city of Kermanshah in western Iran was targeted by the Israeli regime's aggressive attacks," said foreign ministry spokesman Esmaeil Baqaei, adding that "attacking hospitals alongside attacks on residential areas is a gross violation of international law and a war crime".

France on Monday blocked access to the stands of five Israeli arms manufacturers at the Paris Air show for displaying "offensive weapons", according to a French government source.

A black wall blocked off stands run by Israel Aerospace Industries (IAI), Rafael, Uvision, Elbit and Aeronautics for showing "offensive weapons", including those used in Gaza, which allegedly violated terms made with Israel, said the source.

President Donald Trump rejected a plan presented by Israel to the U.S. to kill Iran's Supreme Leader Ayatollah Ali Khamenei, according to a U.S. official familiar with the matter.

The Israelis informed the Trump administration in recent days that they had developed a credible plan to kill Khamenei.

Iran fired a new wave of missile attacks on Israel early Monday, triggering air raid sirens across the country as emergency services reported at least five killed and dozens more wounded in the fourth day of a conflict between the regional foes that showed no sign of slowing.

One missile fell near the American consulate in Tel Aviv, causing minor damage, U.S. Ambassador Mike Huckabee said on X. There were no injuries to American personnel.

The Iranian president on Monday urged all citizens to put aside differences and unite against Israel as conflict rages between the two arch-foes.

"Every difference, issue, and problem that has existed must be put aside today and we must stand strong against this genocidal criminal aggression with unity and coherence," Masoud Pezeshkian said, addressing parliament.

Iranian missiles have killed at least 24 people in Israel since Friday, the Israeli prime minister's office said in an updated toll following the latest attacks.

The toll issued on Monday includes 11 deaths recorded since midnight, the office said, including four in Petakh Tikva near Tel Aviv, three in Haifa and one in the Bnei Brak suburb of Tel Aviv. It also includes two bodies retrieved following a previous strike on Bat Yam and one more killed in an unspecified location.

Iran's chief justice Gholamhossein Mohseni Ejei on Monday vowed swift trials for people arrested on suspicion of collaborating with Israel, as intense fighting raged between the two sides.

"If someone is arrested for having ties to and collaborating with the Zionist regime, their trial and punishment should be carried out and announced very quickly, in accordance with the law and given the war conditions," Ejei said, quoted by Tasnim news agency.

Iran on Monday urged Britain, France and Germany to pressure Israel to stop its deadly attacks on Iran as fighting raged between the two foes for a fourth day.

"Germany, France and England should have very clearly condemned the Zionist regime's crimes, especially against the Natanz nuclear facility," said foreign ministry spokesman Esmaeil Baqaei, adding that European powers should focus on "stopping the aggression" and holding Israel "accountable".

Iran urged the UN's International Atomic Energy Agency to condemn Israeli attacks on nuclear sites in the Islamic republic during an emergency meeting on Monday.

"We expect the (IAEA) Board of Governors and the Director General to take a firm position in condemning this act (attacking nuclear facilities) and holding the regime (Israel) accountable," said foreign ministry spokesman Esmaeil Baqaei during a weekly press briefing.