Tens of thousands of people have attended the funeral in Beirut of the murdered anti-Syrian Lebanese minister, Pierre Gemayel, who was shot dead yesterday.
Tension is high in the country and hundreds of troops have been deployed in the streets of the capital city.
Beirut came to a standstill with shops, schools, banks and government offices closed to let people join the mourning.
Sunni Muslim, Druze and Christian leaders have accused Syria of the killing. Damascus has condemned the murder.
The Secretary General of the Arab League, Amr Moussa, who was in Beirut for the funeral, spoke of his anxiety for the repercussions of the killing.
It emerged this morning that the United Nations Security Council has agreed to a request from Lebanon to help investigate the assassination.
The UN commission already looking into the murder of former Lebanese Prime Minister, Rafik Hariri, in 2005 will take on the investigation.
Many Lebanese people are accusing Syria of being behind the killing. Syria has condemned the attack and denied any involvement.
The UN Secretary-General, Kofi Annan, has expressed concern over the situation in Lebanon. Mr Annan is calling on all sides to work together to ensure unity and stability.