An Australian man in the Philippines has been sentenced to 129 years in prison for sexually abusing children as young as 18 months old, AFP reported.

It was the second sentence for Peter Gerard Scully, who is already serving a life sentence on an initial series of charges related to rape and child trafficking.

Experts warn that the Philippines has become a global hotspot for child sexual exploitation, aided by poverty, fluent English and the country's high-speed Internet connection.

Scully's girlfriend, Lovely Margallo, was sentenced to 126 years in prison. Two others were sentenced to terms of more than nine years.

Among the victims were an 18-month-old girl and a baby whose body was found buried under the floor of a house Scully rented.

Scully was arrested in 2015 in Malaybalaya, a city in the southern Philippines, after fleeing Australia in 2011. He came to the Philippines to avoid fraud charges in his home country. He then set up a cybersex business, filming teenage girls from poor families while having sex. The videos were sold to buyers in Germany, the US and Brazil. Scully and his girlfriend subjected seven of their victims to extreme forms of abuse.