A U.N.-backed special tribunal has offered victims of the 2005 attack that killed former Lebanese Prime Minister Rafik Hariri a chance to participate in the trial and help in seeking compensation.

The tribunal issued a statement Tuesday that says people who suffered “physical, mental or material harm” from the attack can apply to take part in legal proceedings and seek compensation in Lebanese courts.

Mr. Hariri and 22 other people were killed in a Beirut truck bombing. The tribunal has issued arrest warrants for four Hezbollah members who were indicted in the case. The militant group has denied involvement.

Mr. Hariri's son, former Prime Minister Saad Hariri, is expected to discuss the latest developments in the case during a television interview in Lebanon late Tuesday.

In June, Saad Hariri said that the arrest warrants that had been issued for his father's assassination represented a “historic moment” for Lebanon. He urged the country's current government to cooperate with the tribunal.