"Totally there are three that have been arrested by Densus 88, two of them in Karanganyar and one in Solo. Those who are arrested in Solo are known by their initials as S and EM while the one arrested in Solo is HS," Central Java regional police chief Inspector General Condro Kirono said here on Sunday.
He said the three were related with a bomb making case.
"Actually this is an old case. It is related with bomb explosions in Gladak and Singosaren some time ago," he said.
He said HS was arrested in Semanggi, Pasar Kliwon, Surakarta, while EM and S were arrested in Dukuh Winong RT 01/RW 04, Jatkueung, Gondangrejo, Karanganyar.
Kirono said the arrests were fully carried out by Densus 88 while the Central Java police personnel merely helped secure the arrest and search operation.
He said the three suspects were still under interrogation. "They are questioned with regard to their roles," he said.