Kuala Lumpur CID chief Senior Asst Comm Gan Kong Meng said the suspects aged between 30 and 50, were remanded until Sept 18 to facilitate investigations into the leaked papers.
“Those arrested have been remanded to assist the police with the investigations.
“They are being investigated under Section 8 of the Official Secrets Act 1972,” he said when contacted on Monday.
The others detained were two teachers and an insurance agent.
SAC Gan said police also recorded the statements of 12 people, including six Education Ministry’s Examinations Syndicate officers and five teachers.
“Investigations are still ongoing,” he said.
Kuala Lumpur police earlier arrested six people, of which two have been released on police bail.
They were detained in a series of raids in Penang, Parit Buntar, Perak, Kuala Ketil, Kedah and in Sentul here.
Bukit Aman CID chief Comm Datuk Mohmad Salleh said initial investigations pointed to their involvement in the case.
He said police were still recording statements from 10 others believed to be linked to the leak of the Science and English papers.