Iran's Foreign Minister Ali Akbar Salehi asked the International Committee of the Red Cross (ICRC) to probe into the fate of several Iranian nationals and officials abducted by the foreign states in recent year, Fars news agency reported.
The issue was raised in a meeting between Salehi and ICRC President Jakob Kellenberger in Geneva on Monday.
Salehi requested the ICRC to launch probes into the fate of former Iranian Deputy Defense Minister Ali Reza Asgari who was abducted by the "western states" in Turkey in 2006, Iran-born Lebanese Shiite cleric and leader Imam Musa al-Sadr and four Iranian diplomats abducted in Lebanon in 1982.
Elsewhere in the meeting, Salehi said he is pleased with the trend of cooperation between Iran and the ICRC, and stressed that Tehran is prepared to boost the level of cooperation between the two sides.
Ali Reza Asgari, a former Iranian deputy defence minister under Khatami's administration, was kidnapped in Istanbul in December 2006 while on a personal business trip to Turkey.
The Israeli Ynet claimed in a report that a prisoner had committed suicide in solitary confinement in Ayalon prison.
Al-Sadr an Iranian-born Lebanese philosopher spent many years of his life in Lebanon as a religious and political leader, before he went missing during a trip to Libya at the invitation of Muammar al-Qaddafi.
In August 1978, al-Sadr departed for Libya with two companions to meet officials of Libyan leader Muammar al-Qaddafi's government. They were never heard from again, and many believe they met with foul play at the hands of Qaddafi.
Libya has consistently denied responsibility, claiming that al-Sadr and his companions left Libya for Italy in 1978. However, others claim that al-Sadr is still alive and is being held in a secret jail in Libya.
Rome has persistently said that Sadr never arrived in Italy on the alleged flight.
The four Iranian diplomats, namely the then charge d'affaires of the Iranian Embassy in Beirut Seyed Mohsen Mousavi, military attaché Ahmad Motevaselian, embassy technician Taghi Rastegar Moghadam and journalist of the Islamic republic news agency Kazzem Akhavan, were kidnapped by the Lebanese mercenary army - also known as the Falangists - at gunpoint in Northern Lebanon in 1982 and were later handed over to the Israeli army, Fars said.