Two former directors of a Bulgarian arms company and an accomplice were jailed for up to 12 years on Friday for exporting howitzers to Sudan, a news agency said.
The sentences were handed down after the court in Pleven, northern Bulgaria, heard that the un-named figures had organised the despatch via Bourgas, a Black Sea port, of 71 containers filled with munitions parts in November 2001.
They were also ordered to pay 572,000 euros (or 880,000 dollars, the value of the materials) to the state as well as individual fines of 77,000 euros each, Bulgaria's BTA news agency reported.
The company, Beta, had its licence to sell arms revoked in 2003, the agency added.
A European Union embargo on the sale of arms, munitions and military equipment to Sudan has been in force since 1994, although Bulgaria was not yet a member at the time of the crime.
The United Nations imposed an embargo on the sale and delivery of arms to Darfur in July 2004 which was extended in March 2005.