Hong Kong  - A Hong Kong primary school teacher has been sacked for putting secret spy cameras in a room where girls changed for dance classes, a news report said Friday.

Choi Hing-yiu, 32, used the pinhole cameras to film nine girls at the school in Hong Kong's Mongkok district last September, the South China Morning Post reported.

A 10-minute videotape showing the girls changing their clothes in the classroom was handed to police after a dance teacher and students found the cameras. Choi was arrested.

At a court hearing Thursday, Choi admitted placing the secret cameras and was bound over on a good behaviour bond for 12 months, the newspaper said.

The teacher, who was dismissed as a result of the incident, claimed he placed the cameras to film dance lessons and had not intended to record pupils changing. (dpa)