Lebanese security forces have fired rifles into the air and lobbed volleys of tear gas at hundreds of angry mourners trying to storm Lebanese government headquarters in Beirut.
The clashes on October 21 have come on the same day as the funeral of Wissam al-Hassan, a top intelligence official who was killed in a massive car bombing on October 19, which many blame on the regime in neighboring Syria.
The protestors, who broke through an outer security barrier and scuffled with police, demanded the resignation of Lebanese Prime Minister Najib Mikati.
Demonstrators accused the Lebanese government of being too close to Syria and its ally in Lebanon, the Shi'ite group Hizballah.
The Syrian unrest has already inflamed tensions in Lebanon.
Many of Lebanon's Sunni Muslims have backed Syria's mainly Sunni rebels, while Shi'ite Muslims have generally supported Syran President Bashir al-Assad.
Based on reporting by Reuters and AP