Iran Intelligence Minister Mahmoud Alavi says the death of Saudi national, Majed al-Majed, who masterminded twin bombings outside Iran Embassy in Beirut is suspicious, PressTV reported.
"We have no exact information about this issue, but his death is suspicious," Alavi told reporters on Sunday.
Detained Saudi terrorist Majed al-Majed, the head of Abdullah Azzam Brigades, was announced dead in Lebanon's military hospital on Saturday.
Majed had been arrested in connection with the twin bombings at the Iranian Embassy in the Lebanese capital of Beirut on November 19, 2013.
The Saudi terrorist had extensive secret information as he had been active in many countries, including Saudi Arabia, Iraq, Syria, Lebanon, Afghanistan and Pakistan and had direct cooperation or contact with mid- and high-ranking al-Qaeda leaders.
The terrorist group Abdullah Azzam Brigades claimed responsibility for the bomb attack near the Iranian Embassy and the assassination of senior Hezbollah commander, Hassan al-Laqqis late last year.
The Iranian minister warned against the spread of terrorist activities by Takfiri groups in the region.
He added that Western powers have realized that international determination is necessary to counter the threat of terrorism by Takfiri groups and to fight this "ominous, inhumane and un-Islamic phenomenon."