PETALING JAYA: The Islamic State (IS) is working with people smuggling networks to bring foreign fighters to Indonesia through Malaysia, reported the Australian Broadcasting Corporation (ABC).
The head of Indonesia's national counter-terrorism agency Saud Usman Nasution told the ABC that IS fighters arrived from Malaysia in Sumatra and were then taken to Poso in central Sulawesi, a suspected training ground for IS fighters.
"We see that some foreign terrorist fighters from overseas come to Indonesia.
"First they leave Malaysia and head for Pekanbaru (Sumatra) to Puncak (west Java) - it's all facilitated by asylum seeker networks, then from Puncak they would leave to Makassar and Poso, with facilitation from ISIS network.
"So we need to stay vigilant, more so because there is information that in Malaysia, there are thousands, a lot of foreign terrorist fighters there who are about to be deployed - we don't know where to - under the network," the report said citing Saud.
Saud described the IS threat against Indonesia as "significantly serious".
"There are many radical and terrorist groups in Indonesia that would like to take revenge against what they see as injustice from the West against Muslims.
"So we need to continue to stay alert especially after the flock of returnees coming from Iraq and Syria to Indonesia," he told ABC.
Saud was quoted as saying that 76 Indonesians had returned from Syria, while 52 died there and four acted as suicide bombers.
He, however, said that it was unclear how many Indonesians went to Syria and Iraq to fight with IS because they often move through a number of countries to get there.
He added that there were many areas under close watch in Indonesia, including the increasingly popular holiday destination of Lombok.