President F.W. de Klerk's National Party easily won a special parliamentary election considered a referendum on his efforts to end apartheid, results showed Thursday.

Residents of the affluent suburb of Randburg, north of Johannesburg, gave National Party candidate Marthinus Van Schalkwyk 10,882 votes to 1,969 for Leonie Steele of the pro-apartheid Conservative Party.The larger question was whether South African whites backed de Klerk's dramatic reforms, such as releasing black leader Nelson Mandela, legalizing opposition groups and eliminating parts of the apartheid system of segregation and white dominance.