Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Blast Kills Iranian Nuclear Physicist VOA News 12 January 2010 Man closes door of Iranian nuclear physics professor Massoud Ali Mohammadi's home, after he was killed in bomb blast in Tehran, 12 Jan 2010 Photo: AP Man closes door of Iranian nuclear physics professor Massoud Ali Mohammadi's home, after he was killed in bomb blast in Tehran, 12 Jan 2010 A bomb attack in Tehran has killed an Iranian nuclear physics professor. Officials say a bomb-rigged motorbike exploded Tuesday outside the home of Dr. Massoud Ali Mohammadi, a nuclear scientist and professor at Tehran University. State television blamed the blast on U.S. and Israeli agents and described Mohammadi as a supporter of the 1979 Islamic Revolution that brought the Islamic clerics to power. However, pro-reform Web sites had published Mohammadi's name on a list of university teachers who supported opposition leader Mir Hossein Mousavi in the the June presidential election. Iran's opposition accuses President Mahmoud Ahmadinejad of rigging the June vote to win re-election and has been staging anti-government protests for the past six months. It is not clear if Mohammadi is connected to Iran's nuclear program, which the West suspects is aimed at developing a nuclear weapon. Iran insists its nuclear work is for peaceful purposes only. Some information for this report was provided by AP, AFP and Reuters. .