Nelson Mandela says the government is losing control of the country, with the death toll from black factional fighting rising past 100 in the month since a peace accord was signed.

Police reported three killings in fighting Monday in black townships around Johannesburg and the eastern province of Natal. Police reinforcements, many in armored trucks, patrolled the streets in an effort to contain the violence.The government and leading black groups, including Mandela's African National Congress, signed a peace accord Sept. 14 that ushered in a brief period of relative calm. But fighting returned in full force a week ago.

"By allowing this culture of violence to take root, (the government) will themselves lose control of the country," Mandela told reporters Monday.

Nationwide violence has killed more than 6,000 blacks in the past five years. Most of the fighting has been between the ANC, in which the Xhosa tribe plays a dominant role, and the Zulu-based Inkatha Freedom Party.

Mandela said evidence that police encourage the fighting to divide black groups was "overwhelming and such evidence is accumulating."

President F.W. de Klerk and his police commanders deny the charge, which Mandela has made repeatedly.

Mandela has been increasingly critical of de Klerk's government in recent weeks, but he said "negotiations must go on" to end white-minority rule.

De Klerk wants to start preliminary negotiations on a new constitution this year, and Mandela said such talks were still possible.

About 30 gunmen attacked a bar Sunday night in the Soweto township and then randomly shot people on the street, killing 10.