Israel was behind Lebanon pager attack targeting Hezbollah, senior US official says

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.

Near-simultaneous detonations of the pagers used by those belonging to the Iran-backed Hezbollah terror group killed at least 12 people, including two children, and wounded nearly 3,000 on Tuesday. 

This is a developing story. Please check back for updates.

Fox News' Stephen Sorace contributed to this report.