Also swept up in the dragnet — according to observers and activists on social media — was Prince Hamzah bin Hussein, one-time crown prince and stepbrother to Jordan’s King Abdullah II. The monarch replaced him with his eldest son, Hussein, four years into his rule. State news later quoted an unnamed security official who denied reports that a 20-vehicle force had raided Hamzah’s home in a suburb of West Amman, placing him under house arrest and detaining members of his security detail and members of his staff. His head of office, Yasser Majali, was picked up after a heavily armed...