ISLAMABAD: Pakistani students have won seven gold medals in an international competition held in the United States. Three-day competition was organized at a university of the US. Students representing over 200 schools from around the world participated in the event. Seven Pakistani students representing a private school from Karachi won seven gold medals in the competition. Aila Adnan, Shahmeer, Zara Fawad Ali, Toba, Zahra and Haroon are among the gold medallists, said a press release issued here on Monday.