Iran's Revolutionary Guards test fired several ballistic missiles Tuesday, including a long-range missle that is capable of hitting American warships in the Persian Gulf.

Earlier this week, Iran said it's working on missiles that can penetrate Israel's high-tech air defense systems. According to a senior officer the missiles travelled up to 807 miles.

Iran holds several military tests a year.

Tuesday's event coincided with the beginning of a European Union oil embargo meant to put pressure on the country over its nuclear program.

Iran downplayed the impact of the sanctions on its oil exports, saying the country can easily replace its European Union customers.

Iran initially responded to the sanctions with threats to block the Strait of Hormuz, the strategic waterway where about one-fifth of the world's oil is shipped.

Iranian officials appeared to back off from that threat Sunday, but members of the Iranian Parliament drafted a bill to block the Strait to tankers headed to countries that support the sanctions.

Western leaders suspect Iran is building nuclear weapons, a charge the Islamic Republic repeatedly denies.