UN Pleads With Zimbabwe to Open Food aid

He said curbs on aid agencies imposed in June meant that less than 20% of 1.5m people in need had received help.

His comments came as Botswana warned it would boycott this weekend's regional summit if a power-sharing deal was not reached to end the post-poll crisis.

Negotiations were adjourned on Tuesday without agreement.

South African authorities on Friday delayed the closure of camps for foreigners displaced by xenophobic violence, as those living there warned they could face more attacks if they returned home.

The Constitutional Court gave about 2,000 foreigners still in the six camps around Johannesburg a reprieve, saying authorities would keep the shelters open until at least Monday, when it will hear an appeal against their closure, SAPA news agency said.

Authorities last month gave some 3,000 foreigners at the camps a deadline of August 15 to leave. Some of them have since moved out.

Botswana's president will boycott aweekend summit of southern African leaders because the countrydoes not recognise Zimbabwean President Robert Mugabe'sre-election, the Foreign Ministry said on Friday.

President Seretse Khama Ian Khama's decision not to attendthe summit in South Africa underlines growing pressure fromregional leaders on Mugabe and Zimbabwe's opposition to agreeon sharing power to end post-election turmoil.