Police in Tuyen Quang Province, northern Vietnam on Sunday detained Nguyen Ha Duy, a 28-year-old teacher from Tuyen Quang High School for the Gifted, in connection with unusually high math scores in the 2026 national high school exam score investigation.
Authorities said the emergency detention order was issued as part of an investigation into results at the school’s exam site.
Statistics show Tuyen Quang recorded 154 perfect scores in math out of 17,589 test-takers.
Nationwide, there were 4,028 perfect scores.
Notably, more than 140 of Tuyen Quang’s top marks came from students at Tuyen Quang High School for the Gifted, accounting for over 95 percent of the province’s perfect scores.
Only seven other perfect scores were scattered among different exam-takers, including three from Tuyen Quang’s Ha Giang High School for the Gifted.
The Ministry of Education and Training last Friday announced that it had identified irregularities in Tuyen Quang’s math results and sent a working group to review the exam process.
Officials said any violations would be handled in line with prevailing regulations.
Le Thanh Tuyen, chief of staff at the provincial Department of Education and Training, said 328 students sat for the exam at the Tuyen Quang High School for the Gifted test site, with the vast majority being students from the school itself.
He emphasized that exam invigilators assigned to this test location came from three other schools, not from Tuyen Quang High School for the Gifted.
Only administrative personnel, including the examination secretary and either the vice-principal or principal, remained at the test site in management roles as deputy examination supervisors.
Police confirmed they were working closely with education authorities to review and verify all information thoroughly.
Source: Tuoitrenews