Hezbollah and its top ally, Iran, accuse Israel of orchestrating the car bombing. Israel has denied involvement.

The U.S. State Department said Nasrallah's threats are quite concerning and should be alarming to everyone.

The leader of the Shi'ite militant group Hezbollah says he is ready for "open war" on Israel

Iranian Foreign Minister Manouchehr Mottaki attended the funeral for Imad Mughniyeh, who was implicated in deadly attacks against Western and Israeli targets in the 1980s and 90s.

Mottaki's presence at the funeral underscores "the historical links between Iran and its terrorist group creation Hezbollah."

The leader of the radical Lebanon-based Shiite movement Hezbollah has said it can strike anywhere in Israel at any time.