The local leader of prominent Muslim youth group says he will send members to protect houses of worship following the suicide bombing that killed one and injured eight in a church in Surakarta, Central Java, on Sunday.

"Don't let it happen for the umpteenth time," Nusron Wahid, head of GP Ansor, the youth wing of Indonesia's largest Muslim organization, Nadhlatul Ulama, said on Sunday as quoted by kompas.com.

Wahid said that he had previously warned the government to be alert for such attacks and would deploy NU's "counterterrorism team", Banser Detachment 99 – a riff on the National Police's Detachment 88 counterterrorist unit – to the crime scene.

The bombing was likely related to previous religiously motivated radical attacks, according to Wahid. "This is indeed savage and cannot be tolerated. It is uncivilized and hurts the dignity, integrity and meaning of diversity."