At least two people died and dozens more were feared injured in an explosion at a power plant today.

Street Sense and Hard Spun, first and second in the Kentucky Derby, will both retire to stud at the Darley-owned Jonabell Farm near Lexington at the conclusion of their racing careers.

Makybe Diva secured her place in racing history when she became the first mare to land back-to-back runnings of the Emirates Melbourne Cup at Flemington today.

A total of 291 nominations have been made for the Emirates Melbourne Cup at Flemington on November 2.