Israeli authorities have opened a formal investigation into Jerusalem's Deputy Mayor Arieh King following a controversial social media post in which he attacked the UN Relief and Works Agency for Palestinian Refugees. King was questioned for three hours on suspicion of inciting violence and terrorism. The investigation gained momentum after Israeli officials alleged that some UNRWA employees were involved in the Oct. 7 massacre. King was also questioned about other posts, including one showing activists from the extremist Israeli group Tsav 9 vandalizing a humanitarian aid truck.