New explosions linked to electronic devices killed at least one person and injured at least 100, a day after pagers used by Hezbollah exploded, wounding thousands.

Lebanon’s health ministry said Wednesday that at least 20 people were killed and 450 others wounded by exploding electronic devices in multiple regions of the country. The explosions came a day after an apparent Israeli attack targeting pagers used by Hezbollah killed at least 12 and wounded nearly 3,

Hassan Nasrallah refused to say when or how Hezbollah would take revenge. As he spoke, Israeli fighter jets swooped low over Beirut.

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

Walkie-talkies and solar equipment exploded in Beirut and other parts of Lebanon on Wednesday in an apparent second wave of attacks targeting devices a day after pagers used by Hezbollah blew up, state media and officials for the militant group said.

Israeli Defense Minister Yoav Gallant ushered in what he called a “new phase” in the war with regional Islamist groups and said troops would be diverted to the Lebanese border, an indication that long-held fears of a wider conflict may soon be realized.