It appears that Israel continues to lie. Israel continues to deny it's use of white phosphorous.
Yet the U.N. is reporting that three white phosphorous shells hit a U.N. compound and started "raging fires" and the Israeli military forces failed to respond. This is being conservatively reported by the New York Times, a US corporate media outlet. According to the NYT report:
White phosphorus is a standard, legal weapon in armies, long used as a way to light up an area or to create a thick white smoke screen to obscure troop movements. While using it against civilians, or in an area where many civilians are likely to be affected, can be a violation of international law, Israel has denied using the substance improperly. On Wednesday, Hamas fired a phosphorus mortar shell into Israel, but no one was hurt.