Three more 18-year-olds have been arrested in connection with the theft of exam papers from a Rotterdam school.

The three, from Rotterdam, Delft and The Hague, were all pupils at the Ibn Ghaldoun school, where the papers were stolen.

In total, 27 final exams covering all levels of education were stolen. Three other pupils remain in custody in connection with the theft. Pupils at the school are retaking some of the exams this week.

Meanwhile, the school inspectorate has refused to say how many pupils have taken advantage of an amnesty for those who admit having seen the stolen papers.