Iran’s Supreme Leader Mojtaba Khamenei stated that attacks targeting the country’s top officials will not weaken its military power. He made the remarks in a written statement issued early Monday following the killing of Majid Khademi, the intelligence chief of the Islamic Revolutionary Guard Corps (IRGC).

Khamenei said Iran has built a strong and organized resistance composed of self-sacrificing fighters and armed forces, which cannot be broken through acts of terror or attacks. Since a joint U.S.-Israeli offensive began on February 28, a series of strikes have targeted Iran’s political and military leadership, resulting in the deaths of several senior officials.

Israel has claimed responsibility for Khademi’s killing and also asserted that it killed Asghar Bagheri, commander of the IRGC’s Quds Force special operations unit. Tehran has not yet issued an official response to these claims.