An Australian man who allegedly groomed street children in Bali by showering them with gifts and money before sexually molesting them could be part of an international paedophile network, Bali police said. 
Robert Andrew Fiddes Ellis was arrested at his rented Bali home on Monday for allegedly molesting four children. Another four potential victims are also being interviewed by police.
"There could be more - we are still investigating if there will be another arrest, if he belongs to an international paedophile network," said police spokesman Hery Wiyanto.
He said the Australian Federal Police had issued a general warning in 2010 that Australian paedophiles were targeting Bali.
Monday's arrest followed information supplied by child protection organisation Lentera Anak Bali, which had been observing Mr Ellis' activities since he approached street kids in Kuta in 2010. A staff member from the organisation, Luh Putu Anggraeni, said Mr Ellis disappeared after that but returned in 2013 and began showering street kids with love and gifts.
"The street kids have a different mentality, their goal is money, their parents won't let them in the house unless they bring home at least 50 thousand rupiah [$5]," Ms Anggraeni said.
She said after years of Lentera Anak Bali approaching the street kids and their families, two girls aged between nine and 11 finally spoke out. "When we traced it back, it started when one of the young girl's aunt introduced them to Robert. From there Robert slowly groomed the girls, giving them gifts. Then came the molestation, Robert would touch them sexually while bathing them, then would pay the girls 200,000 rupiah after. If the girls spent the night there, then she will be given a couple of million rupiah. If they stayed longer, they might even be given a motorbike."
Ms Anggraeni said "the street kids will do anything to keep their source of income. When we asked them before they will say 'Robert did nothing to us', but slowly, they opened up about what Robert did."
The Bali police spokesman, Mr Wiyanto, said police found a book in Mr Ellis' rented house with 30 names, including the names of the four alleged victims.
He said Mr Ellis was yet to be interviewed by police.
An AFP spokesman said it worked closely with its counterparts elsewhere to prevent, disrupt and prosecute those involved in sexual exploitation of children.