Israel has not claimed responsibility for the operation, but Hezbollah laid the blame squarely on its adversary, and two U.S. officials told NBC News that Israel was behind the attack. From Russia to Jordan,

Hezbollah war grows as the two sides trade new fire, Hezbollah's leader accuses Israel of crossing "red lines."

Hezbollah and Israel launched fresh attacks across the border Thursday as Hassan Nasrallah spoke for the first time since the deadly device bombings