An area near the heavy-water research reactor in Khondab, a key site in Iran's nuclear program, was struck by Israeli forces, according to a report by the Iranian Student News Agency (ISNA) on Thursday.
ISNA said that officials had evacuated the facility before the attack and emphasized that there was no radiation risk.
The reactor, formerly known as Arak, is still under construction. Iran has informed the UN nuclear watchdog that it plans to begin operating the facility next year.
Iranian missile hits hospital in southern Israel
Israel's Foreign Ministry has reported a direct hit on a hospital in the south, after Iran launched another round of missile attacks on the country on Thursday morning.
"BREAKING: A direct hit has been reported at Soroka Hospital in Beersheba, southern Israel. More details to follow," the ministry posted on X.
A hospital spokesperson said there had been "damage to the hospital and extensive damage in various areas. We are currently assessing the damage, including injuries. We ask the public not to come to the hospital at this time."
At least 639 killed in Israeli strikes on Iran, human rights group says
The Washington-based group Human Rights Activists says Israeli strikes on Iran have killed at least 639 people and wounded 1,329 others.
Of those killed, the group identified 263 civilians and 154 security force personnel.
Iran has not given regular updates on the number of people killed in Israeli strikes. On Monday, the figure given was 224 killed and 1,277 injured.
At least 24 people have been killed by Iranian strikes in Israel, according to Israeli authorities.
Iranian official threatens US if attacked
Iran's Deputy Foreign Minister Majid Takht-Ravanchi threatened to retaliate against the United States if it enters the war on Israel's side.
"If the Americans get involved... our hands will not be tied," Takht-Ravanchi said in an interview with the US broadcaster CNN, adding that Iran would not be restrained in its response to a US intervention.
"We will do whatever is necessary to protect our people and our interests," the official said.
While the US government supports Israel's defense efforts, it has said that it is not participating in the military conflict between Israel and Iran.
However, US President Donald Trump has indicated that he is considering it. On Thursday, US outlet Bloomberg News reported that senior White House officials were planning for a possible US attack.
