What is Palestinian Islamic Jihad?

.ON THE EVENING of Oct 17th a blast struck al-Ahli hospital in Gaza Urban area. 1000s of civilians had been sheltering certainly there, along with the sick. Palestinian authorities mention that hundreds perished.

Hamas, the militant team that functions Gaza, as well as numerous Arab countries criticized Israel. Israel’s army, pointing out drone video footage as proof, stated that the surge was actually triggered by a malfunctioning rocket discharged through Palestinian Islamic Jihad (PIJ), yet another militant group. PIJ, which operates in the West Bank and Gaza, refuted the claims.

On Oct 18th, on a browse through to Israel, President Joe Biden additionally condemned “the various other group”, backing up Israel’s account. What is PIJ and also what hazard does it present in this dispute?