The Angolan opposition movement, UNITA, says government jets have been bombarding two of its central highland strongholds, Andulo and Bailundo, for the past four days.

A spokesman for UNITA Alcides Sakala told the BBC some people had been killed in the attacks and many wounded -- though he gave no exact figure.

He accused the government of playing with fire.

The government has refused to comment on the allegations.

The two sides signed a peace treaty in 1994 to end two decades of civil war, but it's never been fully implemented, largely because of UNITA's refusal to disarm.