Police in Indonesia say DNA testing has confirmed the identity of a suicide bomber who killed himself and injured 22 worshippers at a church on Sunday.

They said Tuesday the bomber was 30-year-old Pino Damayanto, who had been wanted in connection with a previous suicide bombing that injured 30 policemen at a mosque in April. Pino also used the name Achmad Yosepa Hayat.

A police spokesman said Pino had the bomb strapped to his stomach when he entered the church.

He said the motive was to wage jihad.

President Susilo Bambang Yudhoyono said earlier the attack shows that extremist continues to threaten Indonesia.

Sunday's attack took place in Solo, the hometown of radical Muslim cleric Abu Bakar Bashir who is considered the spiritual leader behind the regional terror network Jemaah Islamiyah. It came as hundreds of worshippers were leaving a Protestant church at the end of Sunday services.

The police forensics chief Musadeq Shaq announced the results of the DNA testing to reporters.

He said identification was confirmed by primary and secondary data.

The April attack struck at a mosque attached to a police station in Cirebon, about 300 kilometers east of Jakarta. Two main suspects in that bombing were killed by police near Solo in May.