Lebanese Prime Minister Saad Hariri has called on the UN to probe claims by Hezbollah militants that Israel was behind the murder of his father in 2005, according to local press reports Thursday.

Harari said evidence presented earlier this week by Hezbollah chief Hassan Nasrallah implicating Israel in the assassination of Hariri's father Rafik was "important and very sensitive", Lebanese daily as-Safir reported.

"I personally am in favor of a deep discussion of the details, because it is very important to me to find out the truth both as prime minister and as [Rafik] Hariri's son," Saad Hariri said.

Open gallery view Lebanese Prime Minister Saad Hariri Credit: AP

Rafik Hariri, a former prime minister of Lebanon, was killed in a massive bomb blast in Beirut in 2005 and a UN tribunal was established two years later to investigate the assassination.

At first, Hariri's allies accused Syria and its followers in Lebanon of being behind the murder, a charge Damascus has repeatedly denied.

In 2009, however, the German weekly Der Spiegel reported that there was evidence linking Hezbollah to the killing. And last month, Nasrallah said that he had been informed that the UN tribunal would indict some Hezbollah members for the murder.

On Monday, Nasrallah held a press conference during which he attempted to shift the blame to Israel, citing an audio recording of an alleged Israeli agent and intercepted Israeli aerial drone footage.

Saad Hariri reportedly told associates that the maximum amount of time and effort should be invested to check the information presented by Nasrallah.

According to the as-Safir report, the Lebanese prime minister said that the UN tribunal should consider the information presented by Nasrallah, since Nasrallah's words reflected the views of many in Lebanon.

The head of the UN tribunal Daniel Bellmer has reportedly received the contents of Nasrallah's presentation and has asked to receive more details of the documents and films presented by Nasrallah.