Netherlands and Argentina claim wins - London 2012 - Hockey
The Netherlands became the first team to book their place in the semi-finals of the women's Hockey competition, but Germany's bid for the last four received a significant blow.
Korea took a fifth-minute lead through Cheon Seul Ki's penalty corner but the Netherlands bounced back quickly with a simple goal as Maartje Paumen's straight free-hit was deflected in by Lidewij Welten.
Goals from Ellen Hoog and Carlien van den Heuvel gave their side a two-goal advantage before Cheon converted her second corner with six minutes to go to set up a tense finish.
Australia overcame South Africa 1-0 thanks to Jade Close's goal in the seventh minute.
Pool A's bottom-of-the-table clash ended all-square as Japan fought back to earn a 1-1 draw against Belgium.
Second-half penalty corner goals from Fu Baorong and Zhao Yudiao - Crista Cullen pulled back a late set-piece - did the damage as the Chinese took advantage of a lacklustre performance from the Host Nation.
New Zealand boosted their chances of making the semi-finals and ended the USA's in an entertaining Pool B encounter, which the Black Sticks edged 3-2.