Nigeria's Tobi Amusan sets hurdles world record in semi

The 100m hurdles world record was set by Nigeria's Tobi Amusan in the semi-finals of the World Championships.

On the final day of competition in Eugene, the 25-year-old ran a new African record of 12.12 seconds.

Amusan's time is better than the 12.20 seconds set by American Kendra Harrison.

Amusan wanted to leave. I did what I had to do

She said she's looking forward to the finals.

There is a 100m hurdles final on Monday.

Cindy Sember qualified for the final with a new British record of 12.50, one hundredth of a second ahead of her sister Tiffany.

There were four national records run in the semi-finals with seven athletes equalling or breaking their personal bests.

It was a crazy race. I thought I was running slowly. Sember said that Tobi was amazing.

It was suspected that an error may have been made in timing.

Three-time Olympic champion Michael Johnson doesn't believe in the current times.

Colin Jackson said that it will be interesting because it will have to be approved by world athletics. They will have to do a lot of checking.

World athletics have been contacted.