Iran says another top nuclear scientist was killed overnight as he hid at his in-laws

A high-profile Iranian nuclear scientist was killed in an Israeli strike, Iran state TV says, making him the latest in a list of top atomic experts who are said to have been killed in Israeli attacks over the last 12 days.

Mohammad Reza Sedighi Saber, who the US State Department had sanctioned last month, was killed at his father-in-law’s residence in an early-morning strike in northern Iran, according to the report.

It adds that three projectiles had hit the residence, and an earlier round of strikes had killed his 17-year-old son on June 13.

The Council on Foreign Relations on Monday said that Israeli strikes had killed at least 10 nuclear scientists since the Israel-Iran war broke out. The US State Department last month described Sedighi Saber as the head of Iran’s Organization of Defensive Innovation and Research’s Shahid Karimi Group, which works on explosives-related projects, adding that he was “linked to projects including research and testing applicable to the development of nuclear explosive devices.”

Mohammad-Reza Seddiqi Saber, the Iranian nuclear scientist who was assassinated tonight
Early morning Iran#IranIsraelConflict #Iran #Israel#MiddleEast pic.twitter.com/espbUCJS3a

— Neeraj (@hineeraj28) June 24, 2025