Chelsea have announced that they have opened an investigation relating to the conduct of a former employee at Stamford Bridge.

Although they did not specify the nature of their investigation, Chelsea have said that the individual at the heart of the process - who is now deceased - worked at the club some 40 years ago.

"Chelsea Football Club has retained an external law firm to carry out an investigation concerning an individual employed by the club in the 1970s, who is now deceased," they said in a statement.

"The club has also contacted the FA to ensure that all possible assistance is provided as part of their wider investigation. This will include providing The FA with any relevant information arising out of the club's investigation.

"The FA has commissioned a dedicated NSPCC helpline for adults who were victims of sexual abuse in childhood within the football industry. The helpline is available 24 hours a day on 0800 023 2642.

The news is the latest development in a scandal described by FA chairman Greg Clarke as one of the biggest in the organisation's history.

More than 20 ex-footballers made allegations of child abuse, prompting the FA to launch a review of the cases with the assistance of a legal aid.

It has also commissioned a dedicated helpline, run by children's charity the NSPCC, in order to make it easier for any further victims to come forward.