Hezbollah device blasts: how did pagers and walkie-talkies explode and what do we know about the attacks?

Hezbollah has blamed Israel for the attacks on devices across Lebanon. How did the pagers and walkie-talkies explode? Find out in our guide. Composite: AFP/Getty Images/Apollo

In an unprecedented security breach, thousands of pagers and walkie-talkie radios belonging to members of Hezbollah detonated across Lebanon in simultaneous explosions on Tuesday and Wednesday, killing at least 26 people and wounding thousands of others.

Hospitals across Lebanon were overwhelmed with an influx of patients after the pager attack on Tuesday, and a field hospital was set up in the southern city of Tyre to accommodate the wounded.