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On Monday, head of Atomic Energy Organization of Iran (AEOI) Ali-Akbar Salehi warned of assassination attempts on the country's physicists, the official IRNA news agency reported.
The remarks came after Salehi visited Fereidoon Abbasi in the hospital. He advised the enemies of Iran not to play with fire and not to try the country's patience any more, according to IRNA.
The Zionist elements were suspected behind the attacks targeting the physicist professors of Tehran Shahid Beheshti University, said an IRIB report on Monday.
Talking to the reporters after the incidents, Tehran Police Chief Commander, Hossein Sajedi Nia, said that no suspects have been arrested so far and no group has claimed responsibility for the acts.
Both of the terrorist incidents were carried out by the motorcycle drivers who attached the bombs onto the cars and the cars exploded a few seconds later, Sajedi Nia was quoted as saying by the semi-official Mehr news agency.
The wives of the two academics were the staff of Tehran Shahid Beheshti University too, according to the police chief.
In January, Massoud Ali-Mohammadi, a nuclear scientist from Tehran University, was also killed by a remote control bomb attached to a motorbike parked near his house.