Lashinda Demus into semi-finals

World champion Lashinda Demus progressed through to the semi-finals of the women's 400m hurdles this evening.

The 29-year-old from the United States ran a positive opening 300m, which gave a healthy lead over her rivals.

As a result, she eased down in the closing stages, clocking a time of 54.60 seconds as she crossed the line.

The three remaining qualifying places went to Hanna Titimets, Vera Barbosa and Elena Churakova.