In international Cricket, Lasith Malinga - Sri Lankan fast bowler took 4 wickets in 4 balls against South Africa in their Super Eight World Cup 2007 match at Guyana.
Malinga dismissed Pollock, Hall, Kallis and Ntiniin consecutively in 4 balls(the first two batsmen dismissed in the 44th over of the SA innings. And, the next two batsmen were dismissed on the first two balls of the innings 46th over).
SA chasing down 210 runs won the match by just 1 wicket.