The NRL is investigating an allegation that Indigenous stars Latrell Mitchell and Cody Walker were racially abused during South Sydney's loss to St George Illawarra.
South Sydney confirmed on Monday they had been made aware of a claim that the Rabbitohs pair were racially vilified by a member of the Kogarah crowd during last Saturday's match.
"The Rabbitohs were informed of the incident by a member of the public as well as the NRL," Souths said in a statement.
"The NRL has confirmed the NRL Integrity Unit is investigating the matter.
"The Rabbitohs stand in condemnation of any form of racism in our sport, and society in general, and will support the NRL's investigation in any way possible."
It is far from the first time Mitchell has been racially targeted.
A teenager received a formal warning from NSW Police and a ban from the NRL last year for abusing Mitchell as he walked off the field at Penrith.
Mitchell has frequently called out racism on social media throughout his career, and has recently been subjected to boos from fans at matches.
The alleged abuse of Walker also came in his 200th NRL game.
It is far from the first time Mitchell has been racially targeted.
A teenager received a formal warning from NSW Police and a ban from the NRL last year for abusing the star fullback as he walked off the field at Penrith.
Mitchell has frequently called out racism on social media, and has recently been subjected to extensive boos from fans at matches. The alleged abuse of Walker, also a vocal spokesman on Indigenous matters, came in the five-eighth's landmark 200th NRL game.
The Dragons confirmed they were also looking into the matter, after being informed of the allegations by the NRL on Monday morning.
"The Dragons will now work closely with the NRL, the Rabbitohs and the venue to understand the facts of the matter," a spokesman said.
"Racial discrimination has no place in our sport or in our society.
"The Dragons stand united with the NRL and with the Rabbitohs in condemning racism in all its forms."