The US State Department announced that the United States is not involved in any way in the two explosions that shook Iran today, and there is no reason to believe that Israel was involved. Iranian officials stated that the explosions resulted in the deaths of more than 100 people and injured dozens at a cemetery in Kerman province earlier today during a ceremony commemorating the death of the late military commander Qassem Soleimani, who was killed in a US strike in 2020. They blamed unidentified "terrorists" for the explosions.
On another note, State Department spokesperson Matthew Miller said today that the United States remains very concerned about the possibility of the conflict in Gaza spreading to other fronts following the killing of Saleh al-Arouri, a leader of the Islamic Resistance Movement (Hamas) in Beirut. Miller added that he could not provide an assessment of who carried out the attack, but described al-Arouri as a "brutal terrorist whose hands are stained with the blood of civilians," indicating that Washington received no prior notice of the strike.
The White House stated that "America will continue to maintain a significant military presence in the Middle East." It also reported that "America has no evidence of Israel's involvement in the explosions in Iran."