The police today obtained a four-day remand order against three teachers, one of them a woman, to assist in the investigation into the leak in the Science and English examination papers of this year's Ujian Pencapaian Sekolah Rendah (UPSR).

Magistrate Nur Dahlia Azmi issued the order, with effect from today, against the trio, aged between 24 and 36, for investigation under Section 8 (1) of the Official Secrets Act (OSA) 1972.

The teachers were arrested in Negeri Sembilan last night.

On Monday, four men were remanded for four days until tomorrow. Yesterday, the police obtained a four-day remand order against an engineer.

[INFOGRAPHIC]: Click here for UPSR 2014 leak chronology


[PHOTO GALLERY]: The trials and tribulations of UPSR 2014


Following the leak in the Science 018, 028 and 038 and English 014/1 and 014/2 papers last Thursday, almost half a million UPSR students have to resit the papers on Sept 30.

Deputy Prime Minister Tan Sri Muhyiddin Yassin, who is also the education minister, announced last Friday that Examinations Syndicate director Dr Na'imah Ishak and deputy director (operations) Dr Wan Ilias Wan Salleh had been suspended pending an investigation into the leak.