Israel was behind the deadly explosion of pagers across Lebanon on Tuesday, sources told ABC News on Wednesday.

At least nine civilians were killed and more than 2,750 people injured in the explosions, according to Lebanese authorities. Around 200 of the injuries were critical and required surgery, the Lebanese Ministry of Public Health said.

The Hezbollah Resistance Movement said it is conducting a "security and scientific investigation" into the explosion of pagers across Lebanon on Tuesday.

Hezbollah said 11 of its members were martyred on Tuesday.

"We hold the Israeli enemy fully responsible for this criminal aggression, which also targeted civilians and led to the deaths of a number of martyrs and the injury of a large number with various wounds," Hezbollah said of the pager explosions in a Tuesday statement.

In a Wednesday morning statement, Hezbollah said it would continue operations to "support Gaza," and vowed a "reckoning" for Israel for the "massacre on Tuesday."

The dead and injured included people who are not members of Hezbollah, such as a 10-year-old girl killed in the eastern village of Saraain, according to Al-Ahed News.