Farouk Arnaz – The suicide bombing that killed at least one person and injured 20 at a church in Solo on Sunday may be linked to the recent sectarian violence that broke out in Ambon on Sept. 11, a police source said.

"Early analysis of the motive of the bomber links him to Ambon and the culprit will not be far from radical groups. It's revenge. The motive of course can only be confirmed when the network is revealed," a member of the anti-terror squad Densus 88 told the Jakarta Globe under condition of anonymity.

The recent clash in Ambon was sparked by rumors that spiraled out of control after a motorcycle taxi driver suffered a fatal traffic accident.

The driver died from his injuries on his way to the hospital, but a viral SMS fueled false reports that the driver had been tortured and killed by Christians. That prompted a violent clash between two groups that left at least seven dead and prompted law enforcement to question anyone trying to enter the city.

A provocative text message also began circulating in East Java urging Muslims to go to Ambon to wage jihad.

Ali Fauzi, a self-confessed jihadist in Ambon and the younger brother of convicted Bali bombers Amrozi, Ali Imron and Ali Ghufron, agreed that the bombing in Solo was prompted by the Ambon violence. "I feel that it is so," he said.

Separately, an investigator in Solo's bomb disposal unit said that the suspected bomber appeared to be about 35 years old, and that the scene was similar to an earlier attack carried out by Sharif, who detonated a bomb at a police mosque in Cirebon, West Java, in April.

"His head was still attached to the body and his stomach burst, his organs were hanging slightly out. He has no beard. Almost similar to the case of Sharif," the investigator said.

Sharif has been linked to the radical Tawhid wal Jihad network, which was believed to have been led by suspected terrorist Sigit Qurdowi before he was gunned down by police in May.