Grant Elliott has sent the Black Caps to their maiden Cricket World Cup final after hitting a six with two balls remaining to give New Zealand a tense four wicket semifinal win over South Africa.

Elliott finished on 84 not out as New Zealand chased down 298 to win with one ball to spare.

With five needed to win and two balls remaining, Elliott hit Dale Steyn over the boundary rope for six.

New Zealand will face either Australia or India in the final on Sunday in Melbourne.