The Forum Secretariat's law enforcement advisor, Shaun Evans, says the whole region is affected by travellers using fake passports.
This comes as Fiji's minister for immigration, Jioji Konrote, said there had been an influx of people arriving in Fiji with fake travel papers.
But Mr Evans says illegal travellers mainly transit the region and perceive this area as easy to enter.
"It is more a region-wide issue, it is not confined specifically to Fiji. There do seem to have been more instances within Fiji and that is due mainly to its central or hub in regards to aircraft flying to Australia and New Zealand and Canada."
Mr Evans says most fake travel papers are produced in the Asian region, although there have been allegations that they come from within the immigration offices.