Tedros Adhanom Ghebreyesus, the head of the World Health Organization, called the number of civilian deaths in Khan Younis “horrendous,” after a blast killed 12 people sheltering at a U.N. training center in the southern Gaza city. The International Court of Justice will deliver an initial ruling Friday on South Africa’s request that the court order Israel to stop its military campaign. The question of whether Israel is committing genocide will be decided later.