Officers inspect the site of an explosion at a police post in Kartasura, Central Java, Indonesia, early on Tuesday.

An Indonesian militant suspected of being influenced by Daesh was seriously wounded when he tried to blow himself up in a suicide attack outside a police station, authorities said on Tuesday.

The attack late on Monday comes as the world's biggest Muslim-majority country prepares to celebrate the Eid Al Fitr festival at the end of the fasting month of Ramadan.

"This was a suicide bomber," said national police spokesman Dedi Prasetyo. The suspect was in hospital after sustaining injuries to his right hand and abdomen.

No other casualties were reported when the 22-year-old man in Sukoharjo, in Central Java province, set off what police described as low-grade explosives.

"If he fully recovers, we will investigate further into his motive," Prasetyo said, adding the suspect was found to have been exposed to the militant ideology of Daesh.

Indonesia is grappling with a resurgence in militancy.

Counter-terrorism police have detained hundreds of suspected militants after a series of suicide bombings at churches and police stations in the city of Surabaya killed more than 30 people last year.

Hundreds of Indonesians are believed to have travelled to the Middle East to join Daesh.

Authorities in the world's biggest Muslim-majority country, where most people practice a moderate form of Islam, are worried about returnees spreading radical ideology.

Reuters