The US military has announced it is launching fresh strikes against Iran. The military said the strikes are in response to Iranian attacks on three commercial vessels that were transiting the Strait of Hormuz. According to the US Central Command (CENTCOM), the strikes were intended "to impose heavy costs for targeting and attacking commercial shipping crewed by innocent civilians in an international waterway.""Iran's demonstrated aggression was unwarranted, dangerous, and a clear violation of the ceasefire," CENTCOM said on its X account.It was unclear what exactly was targeted by the US military, but explosions were heard in Iran's south according to Iranian media.According to reports in Iran, explosions were heard on the island of Qeshm, with seven blasts being heard in the city of Sirik.Blasts were also reported to have been heard in the southern Iranian port city of Bandar Abbas.The strikes took place amid the 60-day ceasefire as laid out in the US-Iran memorandum of understanding signed by both countries last month.This comes as US President Donald Trump is in Turkey for the NATO summit, where he met Turkish counterpart Recep Tayyip Erdogan on Tuesday.US military strikes on Iran up to five times more intense: reportThe US army's strikes on Iran that took place overnight were four to five times more intense than the attacks launched by the US about a week and a half ago, Axios reported, citing a US official.CNN reported the attacks were seen as a "punishment," adding they would continue for a certain period of time.The US blamed Iran for targeting several vessels in the Strait of Hormuz on Tuesday.