The United States has denied it was behind a series of explosions that rocked parts of southern Iran overnight. Late on Thursday, blasts were reported around the Bushehr nuclear power plant and in cities including Sirik, Konarak and Bandar Abbas. The explosions came during what was otherwise a lull in fighting between the U.S. and Iran, following two days of tit-for-tat drone and missile attacks. They followed warnings by Israeli leaders that Israel’s war against Iran “is not over,” though no one has claimed responsibility for the blasts. On Thursday, Iran’s Foreign Ministry said top diplomat Abbas Araghchi had made phone calls to Omani and Turkish officials aimed at restarting diplomacy to end the conflict.

Meanwhile, Israel is continuing attacks across southern Lebanon, with air raids, gunfire and home demolitions reported, despite a U.S.-brokered ceasefire deal and despite the U.S. memorandum of understanding to end the war on Iran, which requires Israel’s withdrawal from Lebanon.