What is Palestinian Islamic Jihad?

.ON THE EVENING of Oct 17th a blast struck al-Ahli medical center in Gaza Metropolitan area. Thousands of civilians had been shielding there, along with the unwell. Palestinian representatives claim that hundreds passed away.

Hamas, the militant team that works Gaza, as well as many Arab nations blamed Israel. Israel’s multitude, pointing out drone video as evidence, mentioned that the blast was actually brought on by a malfunctioning spacecraft fired through Palestinian Islamic Jihad (PIJ), an additional militant group. PIJ, which works in the West Bank as well as Gaza, refused the charge.

On Oct 18th, on a visit to Israel, President Joe Biden additionally criticized “the other group”, supporting Israel’s profile. What is actually PIJ and what risk does it posture in this problem?