The South Korean team staged an official protest after fencer Shin A-lam lost in the semifinals of the Olympic women's epee, claiming the match was already over when opponent Britta Heidemann of Germany scored the winning point.
Shin and Heidemann were tied at 5-5 when the German seemed to score in the final second. The point was initially awarded to her, but the jury said it would reconsider its decision after the South Korean team appealed.
A jury spokesman said it would "take a while to come to a decision in this delicate situation."
In the meantime, Shin was not allowed to leave the strip and sat, in tears, waiting for a decision.
In the first semifinal, Yana Shemyakina of Ukraine had an upset 14-13 win over top-seeded Sun Yujie of China.