FILE - In this Thursday, July 19, 2012 file photo a damaged bus is transported out of Burgas airport, Bulgaria, a day after a deadly suicide attack on a bus full of Israeli vacationers. U.S. officials expect Bulgarian investigators to link the militant group Hezbollah to the July 18 attack in the coastal city of Burgas, in which a bomb ripped through a bus that was taking the tourists to their hotel. Bulgarian authorities are expected to release their findings on Tuesday Feb. 5, 2013. (AP Photo/ Impact Press Group, File)
(The Associated Press)
SOFIA, Bulgaria – Investigators say a Canadian and an Australian are suspects in a remote-controlled bomb attack that killed Israeli tourists in Bulgaria.
Authorities also said that evidence in the bombing pointed back to Lebanon and to the Islamist militant group Hezbollah.
Hezbollah has denied involvement.