The simultaneous explosion of thousands of pagers used by Lebanese militia Hezbollah on Tuesday was the result of an unprecedented weaponization of a wireless paging system, in which rigged devices detonated upon receiving a coded signal transmitted by radio frequency.

Hundreds of wireless devices exploded at the same time across Lebanon on Tuesday, causing many to be injured and leading the Lebanese Health Ministry to advise people to stay away from their pager-like devices, multiple outlets reported.