Australia has won a medal at the World Gymnastics Championships in Denmark, Prashanth Sellathurai claiming a surprise silver medal in the men's pommell horse.

Xiao Qin gave China fifth gold medal of the week, earning 16.025 to defend his title.

Xiao edged Sellathurai by 0.275 points with American Sasha Artemev settling for bronze.

Since Teng Haibin's success in Anaheim in 2003, Chinese men have won every world and Olympic title on the apparatus.

Cheng Fei earlier won China's fourth gold by defending her title on the vault.

Cheng earned an average score of 15.712 after two soaring vaults, beating American Alicia Sacramone, who scored 15.325, and Germany's Oksana Chusovitina, who had 15.100.

Cheng also won the vault title at the world championships in 2005 in Melbourne.

Marian Dragulescu picked up Romania's first gold medal at the championships when he tumbled to glory on the floor exercise.

Dragulescu earned a score of 16.250 with a series of complex twists and soaring somersaults, eclipsing defending champion Diego Hypolito and Olympic gold medallist Kyle Shewfelt.

Hypolito, who became the first Brazilian man to win a world title in 2005, finished .100 of a point behind while Shewfelt was awarded bronze with 15.700.

Dragulescu's win finally snapped the Chinese men's stranglehold at the championships.

It was his third world title on the mat following his successes in 2001 and 2002.

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