Police in southern Connecticut Friday arrested a martial arts master they say secretly video taped employees and students, one as young as 15 years old.

Master Joseph Moscatelli was charged with voyeurism and risk of injury to a minor after someone at the studio he owns called the police with evidence.

Moscatelli owns two martial arts studios that teach karate and Kung Fu; one in Guildford, another in Branford.

The school in Guildford where police say the hidden camera was has since shut down as police continue to investigate.

Some of the school’s students were shocked over the allegations.