Kuala Lumpur,

Malaysia’s new government stepped up a corruption investigation into a state fund with a seven-hour police search of the home of former Prime Minister Najib Razak and the creation of a special committee to accelerate the probe.

The police searched Najib’s house until early Thursday morning and also raided an upscale condominium in Kuala Lumpur occupied by his family as part of the money-laundering investigation.

The police took several boxes from the house containing mainly personal belongings such as handbags and clothing, but didn’t find any incriminating documents, said Najib’s lawyer, Harpal Singh Grewal.

He said several policemen went to an upstairs room several hours after the search ended and began drilling a safe that had not been opened for two decades because the key had been lost.

“The search conducted in the premises and the items seized thus far would seem of insignificant value and the continued presence of police officers and the drilling of the old safe strongly suggest unwarranted harassment,” Grewal said in a statement.

Najib has indicated he is willing to cooperate with the probe, but “this harassment has now continued for almost 18 hours and nothing meaningful has come” of it, the lawyer said.