The United Nations Security Council is urging Lebanon's feuding factions to refrain from getting involved in Syria's crisis, after a suicide car bombing in northern Lebanon killed at least four people Saturday.
In a statement, the Council condemned the attack and stressed the "need to bring the perpetrators to justice."
U.N. Secretary-General Ban Ki-moon also condemned the bombing, saying the recent escalation in acts of "terrorism and violence in Lebanon is of grave concern."
Lebanese officials say Saturday's blast hit near a gas station and a school run by a charity group in the Shi'ite town of Hermel. People in the area are very supportive of the Lebanese militant group Hezbollah.
The blast, which wounded about 15 people, was the second to hit recently in Hermel, in the latest attack that appeared linked to the war in neighboring Syria.
Groups in Lebanon backing different sides in Syria's sectarian civil war have carried out bombings and other attacks against each other.