JERUSALEM: Iran on Monday (Jun 8) announced the end of its military operations against Israel, but warned of harsher attacks if Israel resumed attacks on Lebanon. The announcement by Iran's armed forces came after United States President Donald Trump demanded that Israel and Iran "immediately stop 'shooting'", following a flurry of attacks that drove oil prices up around 4 per cent and threatened to wreck US-led efforts to broker a deal to end the war.Israel hit a petrochemical plant in southwestern Iran that it said was used to produce ballistic missiles, and Iran's Islamic Revolutionary Guard Corps (IRGC) said it retaliated with a strike aimed at a similar Israeli facility in the city of Haifa.The exchange followed Israeli strikes on strongholds of Iran-backed Hezbollah in Beirut over the weekend. Tehran has repeatedly said any deal with Washington to end the conflict must include a halt to Israel's campaign in Lebanon."Israel and Iran must immediately stop 'shooting'," Trump said in a post on Truth Social, a day after he told Israeli Prime Minister Benjamin Netanyahu to refrain from further attacks to avoid undermining the peace talks with Tehran to end the more than three-month-old conflict.Minutes later, he added in a new post that "final negotiations" towards peace were proceeding "subject to ignorance or stupidity getting in its way".An Israeli military official said on Monday his country was prepared for a range of options in Iran, from several days to "as long as it takes", adding that it had struck Iranian air defence systems that were being rebuilt after previous Israeli attacks, as well as the petrochemical plant.In a similarly defiant vein, an Iranian military source quoted by the Tasnim news agency said Tehran was prepared for a prolonged conflict with Israel and for renewed strikes against US interests in the region.