UN Secretary-General Ban Ki- moon on Wednesday announced his two appointments for the Special Tribunal for Lebanon (STL), which is tasked with probing the 2005 assassination of Lebanese former Sunni Prime Minister Rafik Hariri.

The secretary-general appointed Canadian Norman Farrell as the prosecutor of the STL, said a UN statement released by Ban's spokesperson.

Farrell currently holds the position of the deputy prosecutor of the International Criminal Tribunal for the former Yugoslavia ( ICTY) and will be replacing Daniel Bellemare, who has completed his term of office, said the statement.

Similarly, in accordance with Security Council resolution 1757, its annex and the statute of the special tribunal, the secretary- general appointed Judge Daniel David Ntanda Nsereko of Uganda as an international judge of the appeals chamber of the special tribunal, said the statement.

Judge Nsereko currently is a judge in the appeals division of the International Criminal Court (ICC) and will be replacing the late Judge Antonio Cassese, who was also the former president of the special tribunal.

"In announcing these appointments, the secretary-general once again reiterates the commitment of the United Nations to the efforts of the Special Tribunal for Lebanon to uncover the truth regarding the terrorist attack that took the lives of former Lebanese Prime Minister Rafiq Hariri and 22 others, as well as other connected attacks, so as to bring those responsible to justice and send a message that impunity will not be tolerated," said the statement.