Papua New Guinea's Chief Justice Sir Salamo Injia has been taken into police custody.
The police spokesman Superintendent Dominic Kakas says Sir Salamo was detained this morning.
Mr Kakas says the police will issue a statement shortly.
He says he is still in the dark.
The government of Peter O'Neill in early February suspended the chief justice pending an investigation into alleged mishandling of court funds.
Sir Salamo also presided over last year's leadership Supreme Court case and found Mr O'Neill was unconstitutionally elevated to the prime minister's office over long time incumbent Sir Michael Somare.