Bangui, Dec 26 (AP) Three peacekeepers from Burundi were killed and two others wounded in Central African Republic in attacks by armed combatants, a spokesman for the United Nations secretary-general said.

Secretary-General Antonio Guterres condemned the attacks in Dekoua, Kemo Prefecture and Bakouma ahead of Sunday's presidential and legislative elections, according to a statement from spokesman Stephane Dujarric.

Attacks against peacekeepers may constitute a war crime, the statement said, calling on authorities in Central African Republic to investigate the "heinous attacks and swiftly bring perpetrators to justice".

The UN retook the town of Bambari earlier this week from rebels who had seized it Tuesday.

The government blames the unrest on former President Francois Bozize, who returned from exile a year ago and has been blocked from running in the election.

He has been accused of joining up with armed groups in an attempt to stage attacks and a coup. He has denied it.

Rwanda, which has peacekeepers in the country, and Russia have sent in hundreds of troops to support the government as rebels advance on the capital, Bangui.

The government and international bodies are calling for peace after a February 2019 agreement between the government and 14 rebel groups. (AP)

(The above story is verified and authored by Press Trust of India (PTI) staff. PTI, India’s premier news agency, employs more than 400 journalists and 500 stringers to cover almost every district and small town in India.. The views appearing in the above post do not reflect the opinions of LatestLY)