Lebanese President Michel Suleiman arrived in Damascus Tuesday to hold talks with Syrian President Bashar al-Assad, according to sources from both sides.
Sources told the German Press Agency dpa that the two would discuss regional issues, as well as domestic Lebanese affairs.
The meeting comes on the heels of a proposal by Suleiman to form a parliamentary inquiry committee to look into matters relating to allegations about the reliability of some witnesses that have testified in the UN Tribunal for Lebanon (STL).
The tribunal was set up to look into the death of former Lebanese prime minister Rafiq Hariri, who was killed by a car bomb in 2005, prompting international outrage and suspicions that Syria was complicit in the attack. Syria has rejected the accusations.
An initial UN inquiry had led to charges against four pro-Syrian officials in Lebanon, but they were released due to lack of evidence after serving four years in jail.