Another nuclear scientist killed in Iran; Israel accused

Two assailants on a motorcycle attached a magnetic bomb to the car of an Iranian university professor working at a key nuclear facility, killing him and wounding two people on Wednesday, a semiofficial news agency reported.

The attack in Tehran bore a strong resemblance to earlier killings of scientists working on the Iranian nuclear program. It is certain to reinforce authorities' claims of widening clandestine operations by Western powers and allies to try to cripple nuclear advancements.

The bomb killed Mostafa Ahmadi Roshan, a chemistry expert and a director of the Natanz uranium enrichment facility in central Iran, the semiofficial Fars news agency reported. Natanz is Iran's main enrichment site, but officials claimed earlier this week that they are expanding some operations to an underground site south of Tehran with more advanced equipment.

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The Age: Car bomb kills nuke scientist in Iran
BBC: Iran car explosion kills nuclear scientist in Tehran
Russia Today: Mossad it again? 4th Iranian nuclear scientist bombed
Fars News Agency: Official Blames Zionist Regime for Assassination of Natanz Official