Iran has fired tactical missiles during army wargames, as part of its preparations to face up to any outside threat.
State television said surface-to-surface missiles with a range of up to 250 kilometres were tested and that surface-to-sea missiles were also being fired.
It comes a day after the military exercises were launched. Tehran says they are taking place in over a dozen provinces and could last as long as five weeks.
The Islamic Republic is troubled by the US military presence in neighbouring Iraq and Afghanistan. It has also expressed concern about any Israeli attempt to destroy its nuclear facilities.
Iran said today it would not suspend uranium enrichment, ruling out the main demand in a package of incentives offered by six world powers.
A foreign ministry spokesman said suspension was “not on our agenda.”
Iran says it will formally respond by Tuesday to the proposals, amid Western fears it is seeking to build atomic bombs.
Tehran, which insists its nuclear aims are purely civilian, shows no sign of accepting the package.