|Mujahedin-e khalq terrorist organization officially assumed responsibility for this terrorist operation.|
On June 28, 1981 (7 Tir, 1360) a powerful bomb went off at the headquarters of the Iran’s Islamic Republic Party (IRP) in Tehran, while a meeting of party leaders was in progress. Seventy-three leading officials of the Islamic Republic lost their lives, including Chief Justice and party secretary Ayatollah Dr. Mohammad Beheshti, four cabinet ministers (Health, Transport, Telecommunications and Energy ministers), twenty-seven members of the Majlis (Iranian Parliament), and several other government officials. The bomber, who was as a young student and a Mujahedin operative named Mohammad Reza Kolahi, had long ago penetrated into the party. After planting the bomb inside the party building, kolahi fled the scene before the explosion. Mujahedin-e khalq terrorist organization officially assumed responsibility for this terrorist operation.