Iran says it has successfully test-fired a high-speed underwater missile capable of destroying large warships and submarines - the second missile test reported by Tehran in recent days.

Iranian military authorities say the missile can reach speeds of 360 kilometers an hour, about four times the speed of a torpedo. They also say it cannot be detected by sonar.

The deputy commander of Iran's Navy, General Ali Fadavi told state media no warship can escape from the missile because of its speed.

Iran says it tested the missile Sunday during the third day of large-scale military maneuvers in the Persian Gulf and the Arabian Sea.

This comes as Iran's envoy to the International Atomic Energy Agency says the international community should negotiate with Tehran rather than issue U.N. Security Council statements on Iran's nuclear program.

Ali Asghar Soltanieh Sunday told the U.S. television network CNN the situation will deteriorate further the more the Council is involved in the issue. He said it is better to discuss a peaceful settlement to the dispute rather than using what he called threatening language.

Last week, the 15-member Council unanimously approved a statement calling on Iran to suspend uranium enrichment activity within 30 days.

On Friday, Iran said it test-fired an airborne missile that can evade radar and hit several targets simultaneously with warheads. State Department spokesman Adam Ereli later said the test showed Iran has an aggressive military program.

Some information for this report was provided by AFP, AP and Reuters.