A suspected pedophile, whose criminal case is being handled by the Federal Bureau of Investigation (FBI), is reported to have worked as a teacher at Jakarta International School (JIS) for 10 years from 1992-2002.

The suspect, William James Vahey, had worked as a teacher in various private schools in a number of countries, including Indonesia, for four decades.

The FBI said it was convinced that many children had fallen prey to Vahey and it was now trying to trace those victims.

Vahey committed suicide in Luverne, Minnesota, US, last month, two days after a federal judge in Houston said authorities could continue its investigation into images of children on one of Vahey's flash disks, the CNN-affiliated KPRC reported on Tuesday.

There are a number of photos of at least 90 victims dated in 2008, the FBI is urging other victims to file reports.

The images show a number of sleeping or unconscious boys aged in between 12 and 14-years-old, the FBI said. The photos include places and dates referring to locations Vahey and his students had visited.

"This is one of the most productive child sexual predators we have ever handled,' said FBI Houston special agent, Shauna Dunlap, CNN reported, as quoted by kompas.com. (ebf)