3 Palestinians killed in mysterious explosion in GazaHamas-affiliated news outlet says "martyrs" killed and several more wounded in Khan Younis blast.Smoke from explosion in Gaza Strip [file](photo credit: Ibraheem Abu Mustafa / Reuters)
![Smoke from explosion in Gaza Strip [file]](https://images.jpost.com/image/upload/f_auto,fl_lossy/q_auto/c_fill,g_faces:center,h_720,w_1280/207875 "Smoke from explosion in Gaza Strip [file]")