Warning - this report contains a reference to sexual assault.

West Papua separatists say 15 civilians were among 19 people killed across the Papuan highlands in a week of Indonesian military attacks.

United Liberation Movement for West Papua president Benny Wenda said four of the 19 victims were members of the West Papua National Liberation Army.

An Indonesian government official dismissed some of the United Liberation Movement for West Papua's accusations, including of drone bombings, as "false" and "baseless", but conceded 14 West Papuans were killed - claiming they were combatants.

"Their accusations were not based on any proof or arguments, other than the intention to create chaos and intimidate local communities," the official said in a statement.

The official said Indonesian soldiers were first conducting military operations at Soanggama, a village in the Intan Jaya regency, just over a week ago.

Indonesia's military has become more active in the area since President Prabowo Subianto first came to power one year ago, but this is just the latest phase in a decades-long military occupation of West Papuan ancestral land.

Wenda condemned the most recent killings by Indonesia's forces.

United Liberation Movement for West Papua say Indonesian military forces surrounded a men's communal house before raiding and destroying its building, shooting dead eight civilians during the process.

They allegedly also captured, tortured and later murdered three men during the raid.

West Papuan sources also said a woman was tortured and raped before fleeing from the scene, though she was later chased by soldiers and reportedly drowned in the nearby Hiabu River in an attempt to escape.

"On behalf of the United Liberation Movement for West Papua and the West Papuan people, I condemn the massacre perpetrated by the Indonesian military in Intan Jaya," Wenda, living in exile from London, said.

The commander of the Ngalum Kupel people in the West Papua National Liberation Army was among the four soldiers killed.

Wenda said Lamek Taplo had "bravely" brought the constant bombings and ensuing massacres in Kiwirok to the attention of a world audience during testimony in recent documentary films shot in West Papua.

In Taplo's last public statement before his death, he described how Indonesia was using fighter jets and drones to bomb villages in Kiwirok.

"This is not an equal fight: it's David versus Goliath," Wenda said.

"The armed wing of the Free Papua Movement are guarding their ancestral land with bows and arrows, and a few guns taken from raids.

"The Indonesian military are using unmanned drones, missiles, helicopters, sniper rifles, even fighter jets. I've warned the world since 2018 that Indonesia has been bombarding the Papuan Highlands."

The Indonesian miliary have allegedly been conducting bombing campaigns that have displaced around 100,000 West Papuans.

Soanggama village has now been added to the West Papua battle fields of Bloody Wamena, Bloody Wasior, Bloody Panai, Bloody Abepura, the Blak massacre and the 2023 Wamena massacre.

Wenda claimed "the world has let us down" against the fourth-largest country on the planet.

"No Pacific leaders have intervened or condemned Indonesia for their crimes," he said.

"The difference between Kiwirok and the genocidal attacks on my people in the Baliem Valley in 1977 is that we had no camera to record us, no way of showing what they did to my tribe, all my aunts, my mother.

"Now, the Ngalum Kupel people have video evidence of the destruction of their villages."

The United Liberation Movement for West Papua is demanding Indonesia allows a fact-finding mission from the UN High Commissioner for Human Rights, which has been backed by more than 100 United Nations' member states.

It is still concerned over a blackout for journalists to visit the territory and the presence of non-government and other aid organisations visiting for greater transparency.

"There is no excuse for silence any longer," Wenda said.

"West Papuans can expect no justice in the coloniser's courts. Soldiers who murder innocents are rewarded and called heroes.

"Even the murderers of children in the Paniai massacre were acquitted.

"We rely on the international community to be our voice."