DUBAI, July 2 (Reuters) - An Iranian military commander warned the United States and Israel on Thursday against launching any attack on Iran as it prepares for a state funeral for Supreme Leader Ayatollah Ali Khamenei, who was killed in airstrikes on the first day of the war.

Ali Abdollahi, commander of the unified command of the Iranian armed forces (Khatam al-Anbiya Headquarters), said in a statement carried by state media: "We warn Iran's enemies, especially the United States and the Zionist entity (Israel), against any miscalculation and urge them to consider the harsh response that our armed forces will launch against any threat or aggression against our country."

The funeral ceremonies will begin on July 4 in Tehran and conclude on July 9 with Khamenei's burial in his hometown of Mashhad, with additional ceremonies planned for Qom and Iraq during the same period.

Iranian Foreign Minister Abbas Araqchi issued a similar warning on Wednesday that Tehran would respond immediately and forcefully to any threat against its people or leadership, following Israeli Defense Minister Yisrael Katz's remarks describing Iran's current Supreme Leader Mojtaba Khamenei as a "target for assassination."

Iranian media reported that security measures were tightened during the funeral period, while the head of Iran's Civil Aviation Organization said on Wednesday that temporary restrictions would be imposed on airspace over several cities, including Tehran and Mashhad.