Plamen Oresharski
Plamen OresharskiFlash 90

Bulgarian Prime Minister Plamen Oresharski began his visit to Israel on Monday by visiting the bereaved families of the five Israelis murdered in the 2012 Burgas terrorist attack.

"We are very sorry about the incident in the Burgas airport. We are doing all we can to conclude the investigation on this topic. We are convinced that those guilty of this attack need to be brought to justice," said Oresharski, according to Israel Hayom.

In the meeting, Oresharski returned to the relatives passports belonging to the murdered which were found at the scene. The terror attack was reportedly the first against Israelis on European Union (EU) soil.

Bulgarian security forces in April identified the suicide bomber responsible for the bombing as an Algerian terrorist who trained in Hezbollah camps in southern Lebanon. His links to Hezbollah were reportedly formed while studying in a Beirut university with the two Lebanese men named as accomplices in the attack.

Prime Minister Binyamin Netanyahu addressed the Burgas attack while meeting with Oresharski on Tuesday.

"The attack was conducted by Hezbollah, which is a subcontractor of Iran. We must not let the number one state sponsor of terror achieve the ability to develop a nuclear weapon. That would endanger the entire world," warned Netanyahu.

Netanyahu added "there is a great friendship between the Bulgarian nation and the Jewish nation. First, there are many Israelis with Bulgarian roots. …Second, we will never forget the bravery of many Bulgarians during the Holocaust. At the height of the Jewish genocide…they proclaimed, ‘We refuse to cooperate with the mass murder of the Jewish people.’”