Canada confirmed Tuesday that a suspect linked to the bomb attack on Israeli tourists in Bulgaria is a dual Canadian-Lebanese national and said it takes allegations of his involvement "very seriously.

"That Bulgaria has found convincing evidence of Hezbollah involvement in this carnage is, sadly, not surprising. It is yet more evidence of the depravity of Hezbollah," Canadian Foreign Affairs Minister John Baird said.

"We urge the European Union and all partners who have not already done so to list Hezbollah as a terrorist entity and prosecute terrorist acts committed by this inhumane organization to the fullest possible extent."

"Canada takes the reported involvement of a dual national living in Lebanon very seriously and is working with Bulgarian authorities," he added.