JAKARTA – Indonesian President Prabowo Subianto dismissed his chief of staff, Listyo Sigit Prabowo, on Wednesday, a day after the former national police chief was arrested in a wiretapping investigation, the authorities said.

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Listyo and two other senior police officers were arrested on suspicion of tapping the phones of the president, cabinet ministers and others.

Presidential spokesperson Prasetyo Hadi told reporters that the alleged wiretapping could amount to treason and threaten national security.