Bulgarian security forces have identified the suicide bomber responsible for the Burgas bus bombing in 2012 as an Algerian terrorist who trained in Hezbollah camps in southern Lebanon, according to local news agency Persa.
Both the unnamed suicide bomber - who later moved to Morocco - and the two Lebanese men named as accomplices studied together in a university in Beirut, according to the report, where they then formed links to Hezbollah.
The accomplices, 32-year-old Australian Maliad Farah, also known as Hussein Hussein, and 25-year-old Canadian Hassan El Hajj Hassan, were named last week.
Identifying the suspects has been a long process, according to Ma'ariv, due to a lack of DNA evidence; Hassan's identity was only confirmed after testing DNA found on a jacket retrieved from a hotel room in the resort town.
Hassan allegedly planned the logistics of the attack, which involved detonating three kilograms of TNT beside two small gas balloons to increase the explosion. A report earlier this year claimed the explosives had been smuggled in via Poland, and that the device had been detonated from afar.
The attack killed five Israeli tourists and the bus driver. It was the deadliest attack against Israelis abroad since 2004 and the first on EU soil.
Hezbollah allegedly wired almost $100,000 (75,000 euros) to the two suspects.
Hezbollah's involvement in the attack prompted the EU to blacklist its "military wing" as a terrorist group last year. Israel has also blamed Iran for being involved in the suicide bombing, but Bulgaria has not implicated Tehran in the attack.