Iran has threatened to destroy US military bases across the Middle East and target Israel within minutes of being attacked, said a Iranian media report, as Revolutionary Guards extended test-firing of ballistic missiles into a third day.

Israel has hinted it may attack Iran if diplomacy fails to secure a halt to its disputed nuclear energy programme. The US also has mooted military action as a last-resort option but has frequently nudged the Israelis to give time for intensified economic sanctions to work against Iran.

"These bases are all in range of our missiles, and the occupied lands (Israel) are also good targets for us," Amir Ali Haji Zadeh, commander of the Revolutionary Guards aerospace division, was quoted by Fars news agency as saying on Wednesday.

Haji Zadeh said 35 US bases were within reach of Iran's ballistic missiles, the most advanced of which commanders have said could hit targets 2,000 km away.

"We have thought of measures to set up bases and deploy missiles to destroy all these bases in the early minutes after an attack," he added.

Defence analysts are often sceptical about what they describe as exaggerated military assertions by Iran and say the country's military capability would be no match for sophisticated US defence systems.

Iranian media reported that this week's three-day "Great Prophet 7" tests involved dozens of missiles and domestically-built drones that successfully destroyed simulated air bases.-Reuters