Comment by apienx
"These devices don't appear to be designed to be lethal.[..] They are, for the most part, low charge so not packing enough to actually kill somebody.[..] Let's not forget that this comes on the same day that Israel has extended its war aims to including expelling Hezbollah basically from the border." -- BBC's Security Correspondent Frank Gardner https://www.youtube.com/watch?v=pNEb-dY3tRY
I'm not sure if I'm allowed to link to a gory video, but there is commonly circulating video of a pager detonating in a grocery store. There are a few people around the man but only the man appears to be impacted, all bystanders seem OK.
Media is reporting that most casualties are caused by the pager detonating while driving. Obviously because it would impact other drivers that happen to be around the now incapacitated driver.