The Lebanese terror group Hezbollah was still handing its members new Gold Apollo branded pagers hours before thousands of the devices blew up this week, two security sources said, indicating the group was confident they were safe despite an ongoing sweep of electronic equipment to identify threats.

One member of the Iranian-backed organization received a new pager on Monday that exploded the next day while it was still in its box, one of the sources said. A pager given to a senior member just days earlier injured a subordinate when it detonated, another source said.