Iran's telecommunications minister said Saturday his country's three new satellites have successfully passed pre-launch tests.
Mohammad Javad Azari Jahromi made the announcement in a tweet but did not mention a launch schedule. Iran usually displays space achievements in February during the anniversary of the 1979 Islamic revolution.
On Tuesday, Iran said it plans to send Payam, a 200-pound (90-kilogram) non-military satellite into a 310-mile (500-kilometer) orbit using an Iranian Simorgh satellite-carrier rocket.
On Thursday, U.S. Secretary of State Mike Pompeo said Iran's plans for sending satellites into orbit demonstrate the country's defiance of a U.N. Security Council resolution that calls on Iran to undertake no activity related to ballistic missiles capable of delivering nuclear weapons.
Iran says the launches do not violate the resolution.
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Jahromi's announcement comes soon after the U.S. in November re-imposed all nuclear-related sanctions it had lifted under a 2015 nuclear deal between Iran and world powers. Washington pulled out of the deal in May.
Iran has pursued a satellite launch program for years. The U.S. and its allies worry that the same technology could be used to develop long-range missiles.
Iran has sent several short-lived satellites into orbit over the past decade, and in 2013 launched a monkey into space.