Israel has launched a series of attacks in southern Lebanon, saying it struck hundreds of rocket launchers and other Hezbollah infrastructure.The

Hassan Nasrallah says the exploding device attacks are "a declaration of war" which paid "no heed to innocent people".

A senior U.S. official has confirmed to Fox News that Israel is behind the explosions of pagers used by members of Hezbollah in Lebanon.

Lebanon and Hezbollah have blamed Israel for the attacks on Tuesday and Wednesday that killed 37 people and wounded around 3,000, although Israel has not directly commented on the attacks, which security sources say were probably carried out by its Mossad spy agency.

The absence of a full-blown war in Lebanon has been touted as a core U.S. achievement, but now Washington’s grip on the crisis appears more tenuous than ever.

The leader of Hezbollah vowed to retaliate for this week’s deadly attacks on the group’s communications devices

Israel launched a wave of airstrikes against Hezbollah targets in southern Lebanon, just as the militant group’s leader said two days of exploding pagers and walkie-talkies amounted to a declaration of war.