Police detained two more individuals tonight on the leaked Ujian Pencapaian Sekolah Rendah (UPSR) Science and English papers, bringing the total number arrested so far to 12.

Kuala Lumpur CID chief, SAC Gan Kong Meng said the two individuals were a 26-year-old female teacher and a 31-year-old male teacher.

"The woman teacher was apprehended at 7pm in Labis, Johor while the male teacher was held in Nilai, Negeri Sembilan to assist the investigations," he said in a statement today.

Also seized were communication equipment belonging to the two teachers and both would be produced at the Putrajaya Court tomorrow morning for remand, said Gan.

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To date, 18 individuals have been called to give statements comprising six Malaysian Examination Board (LPM) officers, nine teachers and a journalist, an insurance agent and an engineer.

Following the leak, English papers 014/1 and 014/2 were cancelled after pupils had sat for the papers last Thursday, while the Science 018, 028 and 038 papers were postponed before students could sit for them on the same day last week.

The Examination Board has fixed Sept 30 as the new date for the sitting of the papers for the two subjects.