The nursery worker, 45, pleaded guilty last year to assaulting girls aged three and four while working at a Bright Horizons nursery branch in north London, which has since closed.

He admitted to 26 sexual offences, including five counts of sexual assault of a child by penetration, four counts of sexual assault of a child by touching, 11 counts of taking indecent photographs of a child and six counts of making indecent photographs of a child.

He filmed himself carrying out abuse during the children's naptime.

The law firm Leigh Day says it is representing families "affected by the serious allegations of abuse" while Chan worked at the nursery between 2017 and 2024, bringing a claim against Bright Horizons Family Solutions Ltd.

Leigh Day says 46 families have joined the claim against the company, which runs more than 300 nurseries.

In December, Bright Horizons said in a statement that it was "shocked and appalled" at the crimes and had commissioned an expert review of its safeguarding practices.

At a hearing on Thursday, Chan admitted a further 30 offences which did not take place at the nursery.