Iran delayed promised long-range missile tests in the Gulf on Saturday and Tehran signalled it was ready for fresh talks on its disputed nuclear programme.

Iran's state media initially reported early on Saturday that long-range missiles had been launched during naval exercises, a move that may irk the West concerned over threats by Tehran to close off a vital oil shipping route in the Gulf. 

But Deputy Navy Commander Mahmoud Mousavi later went on the English language Press TV channel to deny the missiles had in fact been fired.

'The exercise of launching missiles will be carried out in the coming days,' he said.

Ten days of Iranian naval drills have coincided with increased tension over Tehran's nuclear programme with Washington and its allies. The European Union said it was considering a ban - already in place in the United States - on imports from the major oil producer.

Analysts say the conflicting reports on the missile test aimed to remind the West of the unforeseen consequences it risked if it ratcheted up pressure on Iran over its nuclear work, which the West says is aimed at building nuclear bombs. Tehran denies this.

'The location and the timing of the drill were very shrewd ... then came reports on launching missiles that can target America's bases in the region and Israel,' said analyst Hamid Farahvashian.

'One of the messages was that you mess with Iran, then you stand to suffer from economic havoc,' he said. 'Iranians have always used this method of carrot and stick ... first they used the stick of closing Hormuz and now the carrot is its willingness for talks.'

An EU spokesman said EU foreign policy chief Catherine Ashton wrote to Iran's nuclear negotiator Saeed Jalili in November and had not yet had a response. But the European Union was open to meaningful talks with Tehran provided there were no preconditions.

'We continue to pursue our twin-track approach and are open for meaningful discussions on confidence-building measures, without preconditions from the Iranian side,' EU foreign policy spokesman, Michael Mann, said in an email.

Tehran threatened on Tuesday to stop the flow of oil through the Strait of Hormuz if it became the target of an oil embargo over its nuclear ambitions, a move that could trigger military conflict with countries dependent on Gulf oil.

Iranian Oil Minister Rostam Qasemi said imposing sanctions on Iran's oil exports would lead to a leap in prices.

'Undoubtedly the price of crude will increase dramatically if sanctions are imposed on our oil ... It will reach at least over $200 per barrel,' the Aseman weekly quoted Qasemi on Saturday as saying.

Reports on Iran threatening to close the strait of Hormuz by Iran were enough to send tremors through oil markets and spike the price of oil.

Iran's show of military might in the Gulf was reflected in the scale of the exercises, which Iranian media said were greater than previous war games. However, Iran test-fired its surface-to-surface Shahab-3 missile during 2009 exercises. It is thought to be capable of striking Israel and US bases in the Middle East. 

Washington has expressed concern about Tehran's missiles, which include the Shahab-3 strategic intermediate range ballistic missile with a range of up to 1,000 km (625 miles), the Ghadr-1 with an estimated 1,600 km range and a Shahab-3 variant known as Sajjil-2 with a range of up to 2,400 km.

Iranian media have given a massive coverage to the drill, with state television broadcasting live in an apparent attempt to strike a patriotic chord among ordinary Iranians concerned about a military strike.

 The US and Israel have not ruled out a military option if diplomacy fails to resolve Iran's nuclear dispute.

'I have already witnessed a war with Iraq in 1980s ... I can hear the drum beating of the war. A misfired bullet can spark a serious war,' said merchant Mohsen Sanaie, 62, while glancing over newspapers headlines at a central Tehran newsstand.

He warily pointed at the headline of the Sharq newspaper 'Power rally in the Strait of Hormuz,' and the Vatan-e Emruz daily's 'The Bermuda Strait of Hormuz' headline, a reference to the treacherous waters of the so-called Bermuda Triangle.

The Strait of Hormuz, a crucial route for 40 percent of the world's oil shipment, is in Iran and Oman's territorial waters.

However, under international maritime law it is considered as open to international navigation and shutting it down would we seen as an act of war.

The US Fifth Fleet said it would not allow any disruption of traffic in the world's most important oil route, which connects the biggest Gulf oil producers, including Saudi Arabia, with the Gulf of Oman and the Arabian Sea. At its narrowest point, it is 21 miles (34 km) across.

Analysts say choking off the strait will hurt Iran's oil-dependent economy, particularly when OPEC member Saudi Arabia has pledged to compensate for any shortages in Iran's crude exports to Europe.

Russia and China, Iran's main allies that have protected it from stronger U.N. sanctions, also have no interest in seeing the oil traffic disrupted in the Gulf and favour resolving the nuclear dispute through talks. – Reuters