SOFIA, Feb. 5 (Xinhua) -- The Bulgarian government said Tuesday two individuals with links to the Lebanese militant group Hezbollah were involved in a deadly blast on a tourist bus at Burgas Airport last July, but the opposition said there is no evidence for this.
"We can make a reasonable assumption that two persons, whose true identity was found, have belonged to the military branch of Hezbollah," Interior Minister Tsvetan Tsvetanov said after a meeting of the Consultative Council on National Security.
They had Canadian and Australian passports and they "lived in Lebanon since 2006 and 2010," Tsvetanov said.
Investigation of the attack has found that three people were involved in the attack, Tsvetanov said.
The minister expressed hope that Lebanon, Australia, Canada and agencies from other European countries will fully cooperate with the Bulgarian authorities in the ongoing investigation of the bomb attack.
But Sergei Stanishev, leader of the main opposition Bulgarian Socialist Party, said, "It is hard to talk about final and conclusive evidences."
According to Stanishev, the government has taken this position after external pressure.
The blast killed five Israeli tourists, their Bulgarian driver and the bomber. Over 30 people were injured.