Lebanon’s Hezbollah has handed over information allegedly implicating Israel in the murder of ex-Lebanese premier Rafiq Hariri in 2005. It follows a request by the prosecutor of the United Nations Special Tribunal for Lebanon.

Hezbollah official Wafiq Safa gave the dossier to Lebanon’s Prosecutor General Saeed Mirza who forwarded it on to the Beirut office of the tribunal’s prosecutor Daniel Bellemare who is probing Hariri’s killing.

The dossier is believed to contain Israeli surveillance footage of routes used by Hariri and the site of the assassination in mainly Sunni west Beirut. Hezbollah claims that the material points to Israel carrying out the bombing which killed the former prime minister and 22 others. The undated clips are alleged to have been intercepted from unmanned Israeli surveillance drones.

The footage was first shown a few weeks after Hezbollah chief Sayyed Hassan Nasrallah was told that the Special Tribunal for Lebanon may indict some of the group’s members over the killing.

Hezbollah, which fought Israel in 2006, is determined to deflect any blame for the killing. Nasrallah’s two-hour presentation also included witness testimonies and analysis aimed at making a case against Israel.

Nasrallah has strongly criticised the U.N tribunal and described it as “an Israeli project.” There are fears that if the tribunal does indict Hezbollah members that the national unity government formed by Rafiq Hariri’s son, Saad al-Hariri, could collapse.

Prime minister Saad al-Hariri has called for calm. He said that although he wanted to know who killed his father, he also wanted stability.

He said, “Dialogue cannot succeed with the accusations of treason and with repeated calls for tests of patriotism and nationalism.”