A false start in the men's 50m backstroke at the Short Course World Championships saw three competitors abort the race.

While the others did not perceive the false start but completed the race.

- No, no, no, this is not good.

The Sims must be stopped.

It's a little scandalous.

This is a scandal.

Scandal!, says SVT Sports commentator Niklas Nord.

Home jumper Isaac Alan Cooper of Australia finished first and thought he had won WC gold and set a new junior world record but the result did not count as the race was invalid.

- Think for Cooper, 18 years old, at home.

Junior world record, taking home a gold medal, he thinks when he looks up.

“Seriously?”

he says when he checks up, says Niklas Nord.

The final will be retaken later on Friday.

See the false start and the swimmers' reactions in the clip above.