Fears of escalation are felt most acutely on the streets of Lebanon, where the army carried out controlled explosions on suspicious devices, and locals have told journalists to take camera away, wary of further blasts.

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

At least nine people were killed and nearly 3,000 wounded when pagers used by Hezbollah members - including fighters and medics - detonated simultaneously across Lebanon. Here's what we know so far about the pager blasts.

An attack in Lebanon on Tuesday reportedly killed eight people and injured over 2,700 — with hundreds of pagers belonging to Hezbollah members detonating simultaneously.