Indonesia's Military has dismissed "ridiculous" claims it used a banned chemical weapon to subdue separatist forces in West Papua.

Key points: Reports claim white phosphorus grenades were used by the Indonesian army

Reports claim white phosphorus grenades were used by the Indonesian army But the military denies the allegations, labelling the reports as propaganda

But the military denies the allegations, labelling the reports as propaganda Claims come after the deaths of construction workers who were attacked while building a road in remote Nduga

Photos published by The Saturday Paper on Saturday show a man with a gaping wound to his leg and severe burns.

The report included claims the wounds may have been inflicted by white phosphorous, a chemical incendiary that cannot be extinguished and causes horrific injuries.

In a statement provided to the ABC by Papua Military Command spokesman Colonel Mumahammad Aidi, Indonesia dismissed the reports as "propaganda" and "fake news".

The Indonesian military says it will continue operations in West Papua. ( Supplied: Free West Papua Campaign )

"The people who write the propaganda are ridiculous people, and stupid," the statement said.

The statement said white phosphorous bombs "cannot be carried by a personnel-carrier-sized helicopter" and must be fired from "tens or hundreds of kilometres away, or dropped from the air by a bomber".

It said the Indonesian Military (TNI) does not operate fighter aircraft, let alone bombers.

"If the TNI was using phosphorous bombs, the Nduga District would have been wiped out. All human beings and animals there would have been wiped out," the statement said.

The Indonesian military is accused of using the chemical incendiary white phosphorous in its weapons. ( Supplied: Free West Papua Campaign )

"This cheap propaganda has been deliberately produced by the KKSB [Armed Civilian Group] as a deliberate disguise, to occupy the public with hoaxes and propaganda, so people will forget about the fact that this group [has killed] 28 civilians."

White phosphorus is used in grenades, mortar shells, and artillery shells to mark targets, provide smokescreens, and as an incendiary, according to a fact sheet from the Federation of American Scientists (FAS).

Incendiary weapons, including white phosphorus, are prohibited for use against civilian populations under Protocol III of the Convention on Certain Conventional Weapons.

In recent weeks, Indonesian soldiers have been hunting separatist rebels accused of killing at least 17 construction workers, who were attacked while building a road through the remote region of Nduga.

The Indonesian military said the operation was merely aimed at recovering the bodies of the slain workers.

Indonesia's police chief says the police and military do not use "phosphorus bombs or any sort of [dropped] bombs". ( Supplied: Free West Papua Campaign )

Papuan Governor Lukas Enembe has called for an end to the operation, saying "this is enough".

"I, as the Governor of Papua, am asking President Jokowi [Joko Widodo] to withdraw all the troops in Nduga," he said.

Indonesia's police chief in Papua, Inspector General Martuani Sormin, told the ABC: "The TNI and police does not use phosphorus bombs or any sort of [dropped] bombs."

"Australia has a motive to make a bad impression [of Indonesia] before the international community," he said.

When asked if the security operation would be suspended during Christmas, as requested by Papuan leaders, he responded:

"No-one can stop the duty of the police and TNI to guard and secure the country, including in Mbua and Nduga."

In an emailed statement, a spokesman for the Department of Foreign Affairs and Trade said the Government is aware of continuing reports of violence in Nduga, including "unverified allegations concerning the use of 'phosphorous projectiles'."

"The Australian Government condemns all violence in Papua, affecting civilians and authorities alike," the spokesman said.

"We continue to monitor the situation, including through our diplomatic missions in Indonesia."