The funeral of a nuclear scientist killed by a car bomb has taken place in Tehran.
State TV reported thousands attended the funeral of Mostafa Ahmadi-Roshan, 32, after prayers on Friday.
Iran has blamed the United States and Israel for the killing. The BBC reports the US has denied the accusation. Israel has not commented on the incident.
Mr Ahmadi-Roshan worked at the Natanz uranium enrichment facility. According to Iranian news sources, two men on a motorcycle attached a magnetic bomb to his car on Wednesday and detonated it.
Tehran said the death would not impede "progress" in its nuclear programme.
Washington and its allies suspect Iran of secretly trying to develop a nuclear weapons capacity but Iran insists the programme is peaceful.
