World Rugby has found insufficient evidence to pursue Tom Curry’s allegation that he was racially abused by Mbongeni Mbonambi in England’s World Cup semi-final defeat by South Africa.

The game’s global governing body announced that it has closed the case unless additional evidence comes to light.

Curry alleged to referee Ben O’Keeffe in the second quarter of the Stade de France showdown that he had been called a “white c***” by Springboks hooker Mbonambi.