U.S. prosecutors charged six people with a conspiracy to illegally provide Iran with satellite technologies used in Iran's first satellite launch, the Washington Post said on Wednesday.

The indictment, which was handed down last Wednesday and unsealed on Tuesday, alleges that the defendants received $10 million in their schemes of "assistance to Iran and the Iranians."

"The indictment alleges that the defendants violated the Iran trade embargo by creating a sham company to conceal the fact that they were providing goods, technology and services to Iran in return for millions of dollars," the paper quoted U.S. Attorney Rod J. Rosenstein as saying.

A U.S. national of Iranian origin, 49-year-old Nader Modanlo, was arrested on Tuesday while five Iranian nationals are still at large.

In 2005, Iran sent its first commercial satellite, Sina-1, into orbit from a Russian rocket.

A U.S. embargo was imposed on high-technology supplies to Iran following the 1979 Islamic Revolution and the subsequent U.S. Embassy siege in Tehran.