Milica Mandic won Serbia's first
gold medal of London 2012 as she beat Anne-Caroline Graffe
of France in taekwondo.
The 20-year-old, who previously won silver at the 2012 European Taekwondo Championships, won the +67kg class 9-7 in the final at ExCeL.
Graffe was the top seed, but Mandic also beat the defending champion and the number two seed on her way to gold.
Russia's Anastasia Baryshnikova and Mexican Maria del Rosario Espinoza won bronze.
Baryshnikova, 21, won gold at the european championships in Manchester earlier this year, but was beaten by Mandic in the semi-finals.
put that disappointment aside to beat In Jong Lee of South Korea 7-6 to secure her first Olympic medal.
Espinoza, who won gold in Beijing four years ago, was also beaten by Mandic in the quarter-finals.
She then came through repechage to beat
Glenhis Hernandez of Cuba 4-2 to secure her bronze medal.