More than 10,000 people in China have set a world record for the longest chain of human dominoes.

Arranged in lines, they slowly collapsed backward on to each other in sequence from a sitting position like a line of toppling dominoes.

The 10,267 people who took part wore colour-coordinated clothes that spelled out in English and Chinese the name of the city of Ordos in Inner Mongolia where the record attempt was made.

The monitor of the Guinness World Records, Wu Xiaohong, declared the new record. It beat one set a decade ago in Singapore.