Education authorities in Romania are investigating some 400 cases in which students are suspected of getting into high schools without having the necessary grades.

Education Minister Sorin Campeanu said Thursday the investigation involves schools in four counties.

He says that the pupils had already been placed in schools, but their parents requested moving them to better schools for which they had not qualified. They were then apparently admitted.

Officials are now verifying whether illegal transfers were made.

The education ministry publishes every pupil's high school entrance exam grades and the grades needed to get into every high school.

There have been cases of Romanian students pretending they are Gypsies or Roma, because Roma are able to admitted to high schools with lower grades