United Nations investigators have begun questioning top Syrian officials about the assassination of former Lebanese Prime Minister Rafik Hariri.
Diplomatic sources say five Syrian officials are being questioned at U.N. offices in Vienna. The interviews are expected to continue until Wednesday.
The sources say the suspects arrived in the Austrian capital late Sunday. Damascus recently agreed to allow its officials to be questioned outside Syria.
Syria denies any involvement in the February 14 bombing in Beirut that killed Mr. Hariri and 20 other people. However, a report by a U.N. commission in October implicated top Syrian and Lebanese officials.
The U.N. Security Council has warned Syria to cooperate fully with the probe or face consequences.
Earlier this year, Syria was forced to withdraw its troops from Lebanon under intense domestic and international pressure.
Some information for this report provided by AP, AFP and Reuters.