Three improvised bombs were found on Sunday near a police post in Indonesia's restive Papua province where police and suspected separatists clashed earlier in the week, police said.
The bombs, which did not explode, were left in a garbage bin near a police post in Abepura town where police shot a man dead during a clash on Thursday during elections. "An investigation is underway to reveal the motive," Papua's police spokesman Nurhabri told AFP, adding that an anti-terror police squad was investigating the type of explosives used.
A garbage collector found the bombs early on Sunday, he added.
Calls for Papuan independence had grown ahead of the elections and national police chief Bambang Hendarso Danuri said earlier that the pro-independence Free Papua Movement (OPM) was suspected of being behind several attacks on Wednesday-Thursday across the province.
In Thursday's clash in Abepura, police shot a man dead as the suspected rebels attacked the police post with arrows and bombs hours before polling stations opened for for local, provincial and national elections.
Indonesia took formal control of the region in a 1969 UN-sponsored vote by select tribal elders widely seen as a sham and the area has seen a long-running insurgency waged by poorly armed pro-independence guerrillas.