Southampton have criticised social media platforms for allowing "hatred to breed and fester" after defender Kyle Walker-Peters suffered racist abuse online on Sunday.
Offensive remarks were posted in the comments of the 25-year-old's week-old Instagram post after his side's goalless draw with Manchester United.
Saints said they were "disgusted and disappointed" by the abuse.
The club have forwarded the messages concerned to Hampshire Police.
The force said they are working with Southampton and "enquiries into this matter are ongoing".
Southampton also contacted police in February 2021 after midfielder Alex Jankewitz was racially abused online.