UNITED NATIONS/KABUL, April 5 (Reuters) - U.N. chief Antonio Guterres condemned on Wednesday a ban by Afghanistan's Taliban authorities on Afghan women working for the United Nations, calling it "an intolerable violation of the most basic human rights" that should be immediately revoked. The United Nations has told some 3,300 Afghan staff - of which about 400 are female - not to report to their offices until further notice for security reasons. "Banning Afghan women from working with the U.N. in Afghanistan is an intolerable violation of the most basic human rights," Guterres posted on Twitter. Top U.N. officials in Kabul met with the Acting Afghan Minister of Foreign Affairs Amir Khan Muttaqi on Wednesday after the Taliban authorities signaled on Tuesday that they would enforce a ban on Afghan women working for the world body. So far it is only 5% funded and the United Nations says nearly three-quarters of the country's 40 million people need help.

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