Hezbollah device blasts: what do we know about how the attacks happened?

What sources are saying about the techniques behind the simultaneous explosion of thousands of devices

• Analysis: Exploding pager attack in Lebanon is another blow for US peace hopes

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 more than 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.