The recent Gaza hospital blast has caused significant loss of life. Estimates range between 471-500 (Gaza HM) and 100-300 (US intelligence) people killed. (AP), and there still an ongoing investigation underway on the subject:
Israel faces blame from regional allies over Gaza hospital deaths (The Guardian)
“It appears the result of an errant rocket fired by a terrorist group,” the U.S. president says. (NBC)
There is little doubt that the destruction of the al-Ahli Arab Hospital is a war crime, no matter who is ultimately responsible. (Al Jazeera)
It seems a significant amount of the weaponry and rockets fired from Gaza are homemade (CNN) so there may be a risk they wont reach their indented targets, but explode on Gazan territory. Israeli news also reported in September a 'premature explosion':
6 killed in Gaza border blast during rioting, apparently while planting bomb (Times of Israel)
according to the IDF one in five Gaza rockets misfires, kills Palestinians (jpost)
In the recent conflict, according to Israel, in two weeks 7000 rockets were fired from the Gaza strip.
Considering Gaza doesn't have an Iron Dome, 1/5 rockets misfiring can cause quite a lot of damage, even if Israel doesn't fire back (which they do).
I am curious, if it was a Jihad misfire, how likely that they'd admit it?
So did organizations like the Hamas or the Islamic Jihad ever took blame for rocket misfires or homemade explosives going off in their own populated areas?