An adviser to the Nigerian military ruler Sani Abacha, has accused the European Union, the United States, South Africa and Ghana of supporting attempts by opposition groups to destablize the country.

In a statement released in the capital, Abuja, the aide Wada Nas said Nigerian human rights and pro-democracy groups had received financial and moral support for a range of actions from street protests to plans to destroy important government facilities.

He said the opposition United Action for Democracy -- whose leader was arrested in May -- had received a donation of two hundred and fifty thousand dollars from the European Union.