"The four are known by their initials as UK alias Rian alias UP, AM, HI alias BI alias Nana, and ES," National Police head of public information division Senior Commissioner Boy Rafli Amar said here on Wednesday.
UK was arrested in his home in Ciseureuh village, Sukamulya; AM in Jalan Galur in Cibening village, Bungursari, Purwakarta; HI in the Mahkota housing complex in Cikampek; and ES in Ranifa shop in Ciluwak Desa in South Cikampek.
"UK was arrested for his involvement in hiding Kamaludin, who is on the police wanted list, and for delivering ammunition to Medan," he said.
AM, meanwhile, was involved in a terrorist cell led by Ujang that had carried out a "fa`i" (robbery to raise funds) in Kaliasin, Cikampek, and shot a retired army officer. HI and ES were arrested for involvement in the fa`i operation.
"The evidence confiscated include an FN pistol, an axe, a dagger, a sword, two knives and a mask. The four suspects are still being questioned intensively," Boy said.
On Tuesday, Densus 88 also arrested three alleged terrorist network members in Purwakarta, West Java, at 5am, identified as U, AG and D.
The three were arrested following the arrests made in Bima on Friday, April 13.
One of the alleged terrorists arrested in Bima, identified as Kamaludin, had fled as far as West Java.
Kamaludin is one of the figures who played an important role in the training of terrorists in Aceh in early 2010. He was arrested in Bima along with suspect Drg YNI, Boy said.