At least three people are reported to have died in the latest blasts, a day after thousands of pagers exploded across Lebanon.

One Hezbollah official said the episode was the biggest security breach in the group's history. The operations, which appeared to throw Hezbollah into disarray, played out alongside Israel's 11-month-old war in Gaza and heightened fears of an escalation on its Lebanese border and the risk of a full-blown regional war.

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.