By REUTERS

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Congolese security forces and a militia fighting them have killed at least 3,383 people in the central Kasai region since October, the Catholic church said on Tuesday, in the most detailed report to date on the violence.

Church officials, citing their own sources in the remote territory bordering Angola, said the army had destroyed 10 villages as it sought to stamp out an insurrection.

They also accused the Kamuina Nsapu militia of killing hundreds of people, destroying four villages and attacking church property in a campaign to drive out central government troops.

READ: UN alarmed by Congolese refugee influx in Angola

No one was immediately available to comment from the militia or Democratic Republic of Congo's army, which has dismissed accusations of excessive force in the past.

Political tensions

The clashes have triggered fears of a wider conflict in the central African giant, a tinderbox of ethnic rivalry and competing claims over mineral resources. Wars at the turn of the century killed millions and sucked in neighbouring countries.

The church's report will carry considerable weight in a country where about 40 per cent of the population identifies as Catholic.

Fighting surged in Kasai in August when the army killed a chief who had been calling for central government forces to quit the region, saying it should be left to local leaders.

The violence has stoked political tensions already heightened by President Joseph Kabila's decision to stay in power beyond the December 2016 end of his mandate. Kasai is an opposition stronghold.

The UN Human Rights Council in Geneva is due to decide this week whether to authorise an investigation into the Kasai violence. UN investigators say they have discovered 42 mass graves.

READ: UN urges probe of DR Congo violence

Congo's government opposes an international investigation, saying that would violate its sovereignty.

The United Nations says more than 1.3 million people have fled the fighting.