Lizzy Yarnold has won gold in the skeleton at the Winter Olympics, while her teammate Laura Deas took bronze in the same event.
The 29-year-old successfully defended her Olympic title with her 0.45 second win, from the previous Games in Sochi.
The pair's medals come just hours after Izzy Atkin won Team GB's first medal in skiing at the Winter Olympics in PyeongChang, when she took bronze in the ski slopestyle final.
With three medals in one day, Saturday is Team GB's most successful day at the Winter Olympics since the 1924 Games in Chamnoix, France.
Speaking after her victory, Yarnold said she had considered quitting because of illness.
After the first run yesterday I was almost at the point of pulling out. My chest infection was stopping me from breathing.
It is the first time Britain have won two medals in the same event at the Winter Olympics.
Team GB had been hoping for a fourth medal from Elise Christie in the 1,500m short track speed-skating, but she crashed out of the semi-final after colliding with China's Li Jinyu.