BARCELONA, Spain, Aug. 2 (Xinhua) -- Cate Campbell gave Australia their third gold medal in the pool when she swam to victory in the women's 100 meter freestyle in the swimming world championships in Barcelona.

Campbell swam home ahead of Sweden's Sarah Sjostrom, who took silver, while Olympic silver medalist, Ranomi Kromowidjojo was third.

Meanwhile Missy Franklin's quest for a clean sweep of seven gold medals came to an end as she was only able to finish fourth.

Campbell led from the start of the race and had a clear lead at the turn before powering home to finish in 52.24, ahead of Sjostrom' time of 52.84.

"I can't believe its just happened," she said after winning her first ever gold medal. "This has never happened to me and I am so relieved," she added after swimming close to world record time.

"I might get that in the coming years," said Campbell.