“Majid Jamali Fashi, the Mossad spy and the person who assassinated Masoud Ali Mohammadi, our nation's nuclear scientist, was hanged on Tuesday morning,” Irna reported.

Fashi was accused of receiving $120,000 for passing information on to Israel's intelligence agency Mossad.

The Iranian scientist, described as “a staunch supporter” of the Islamic revolution was killed on January 12, 2010, when a remote-controlled explosive device attached to a motorbike was detonated near his home in northern Tehran. Iran blamed Israel and the United States for the murder.

Shortly after the incident, Al Jazeera said Mohammadi, a lecturer at Tehran University, might have had links to Iran’s disputed nuclear program.

Western powers suspect Iran of seeking to build nuclear weapons under the guise of its nuclear program, which Tehran says is aimed at the peaceful generation of civilian energy.