The Group of the Martyrs Mostafa Sadeki and Ali Zadeh is a shadowy organization who allegedly claimed responsibility for several attacks on a Swiss bio-chemical plant.  The firm, Bioengineering AG in Zurich, had been accused in the past by government officials from the United States and Israel of providing supplies to Iran for the production of biological weapons.  <P><br /><br />Bioengineering AG was attacked on three separate occasions.  In February 1992, the company's offices were bombed, causing an unknown amount of damage.  In June of that year, a shipment from the company was destroyed at a Munich-based delivery company before leaving for Iran.  Equipment destroyed in the bombing included fermenters that were similar to those used in bio-weapons programs.  In February 1993, the company's offices were bombed again, causing $1 million in damage and severely hampering the company's fermenter production line.  <P><br /><br />Sources disagree as to the claims of responsibility for these events.  Most reports have the Group of the Martyrs Mostafa Sadeki and Ali Zadeh claiming responsibility for either the 1992 or 1993 office bombings, with other reports saying a group known as Babak Khorramdin was responsible for one or all of the attacks.  Those reports that cite the Martyr's group say that the previously unknown group claimed to be an Iranian dissident organization.  Babak Khorramdin is also an Iranian opposition group that has claimed responsibility for several attacks against the Iranian regime. <P><br /><br />Many believe that neither Iranian group was responsible, and that Israeli intelligence was actually behind the attacks.  These accusations lack any concrete proof but are based on several valid assumptions.  First, the attacks were carried out in both Switzerland and Germany with extreme precision and sophistication.  Many believe that the unknown Martyr's group or Babak Khorramdin could not have carried out such an attack.  Second, the attacks bear a striking resemblance to the 1979 bombing in France of a nuclear reactor core that was to be sent to Iraq, also linked to Israeli intelligence.  Lastly, Israeli government officials had publicly complained on several occasions that Bioengineering AG was supplying Iran with bio-warfare supplies.  In any case, there is no proof that Israeli security forces had anything to do with the attacks.<br />