The UN-backed tribunal probing the 2005 murder of former Lebanese Prime Minister Rafik Hariri has submitted an indictment to Lebanon's prosecutor general, Al -Jazeera and Al Arabiya television reported Thursday.

Representatives of the International Court of Justice in The Hague arrived in Beirut to serve the indictments, which according to Al Arabiya, include four arrest warrants against Hezbollah officials.

Open gallery view A banner in Lebanon of Saad Hariri and his father Rafik Hariri. Credit: Reuters

Two of the arrest warrants are for a commander of Hezbollah special operations, and for a senior Hezbollah leader. The identity of the other two people is still unknown.

A fifth arrest warrant is due to be served against a suspect who does not hold Lebanese citizenship.

The Special Tribunal for Lebanon, the world's first international court with jurisdiction over the crime of terrorism, was set up to try those accused over the Beirut bombing that killed Hariri, a former Lebanese prime minister, and 22 others.

Hezbollah, which strongly denied any role in the 2005 assassination, and its allies resigned from Hariri's unity government in January, just days before the tribunal prosecutor filed the still-secret indictments to a pre-trial judge.

The indictments have been twice amended while the pre-trial judge assessed whether there was enough evidence to proceed with a trial.

Hezbollah and its allies now have a majority in the new government of Najib Mikati, formed two weeks ago after months of political wrangling. Mikati's cabinet met on Thursday to agree a policy statement, including its stance towards the tribunal.

Hezbollah has said the international court is a tool of the United States and Israel and wants Lebanon to halt all cooperation with it, including withdrawing Lebanese judges and ending its share of funding for the court.

Mikati has said he wants the government to honor Lebanon's international commitments unless a national consensus emerges to reverse that position - which is unlikely given Saad Hariri's continued strong support for the tribunal.

Rafik Hariri was killed by a huge truck bomb. International condemnation of the attack forced neighboring Syria to end a 29-year military presence in Lebanon.

Six months after the Feb. 14, 2005, assassination, four pro-Syrian Lebanese generals were arrested at the request of the UN investigator. A report delivered to the UN Security Council implicated high-ranking Syrian and Lebanese officials in the murder.