Saudi authorities began releasing officials and royal family members questioned in a security clampdown, as the government sought to end speculation about the health of King Salman by publishing photographs and videos of the 84-year-old monarch. Interior Minister Abdulaziz bin Saud bin Nayef and his father, Prince Saud bin Nayef, were both released after being summoned for questioning by the royal court, according to people familiar with the matter. …