British retail entrepreneur Sir Philip Green has been charged in the US with four counts of misdemeanour assault. The Pima County attoney's office says the charges come after a pilates instructor in Arizona alleged that he repeatedly touched her inappropriately. The incidents allegedly occurred at the Canyon Ranch resort in Tucson in 2016 and 2018. Pima County Attorney's Office said each count has a potential sentence of up to 30 days in jail and carry a fine of up to £400. Sir Philip has previously denied the accusations. It comes after the tycoon was asked by Britain's pension regulator on Friday to handover an additional £50m into the scheme of his floundering retail group. The group employs 18,000 people in his fashion chain Arcadia Group, stores include Topshop, Burton, Dorothy Perkins, Miss Selfridge, Wallis, Evans and Outfit. The charges come amid controversy in the UK where it has been revealed he has used legal non-disclosure agreements to silence allegations of sexist, racist and threatening behaviour towards his employees against him. The billionaire was alleged to have paid out more than £1 million for the silence of a senior female Arcadia executive after having groped her and called her a “naughty girl”. He was also alleged to have kissed her face and slapped her bottom. Mr Green was also alleged to have told a black employee he was still “throwing spears in the jungle”, made fun of his dreadlocks and accused him of smoking cannabis. Other staff complained about his treatment of ethnic minorities. In response to the UK accusations, Mr Green’s lawyers admitted in court that he sometimes he acted in a “tactile” way and has “prodded and poked individuals”. He told a newspaper: “There has obviously from time to time been some banter, but as far as I’m concerned that’s never been offensive.” Mr Green has said he “categorically denies any unlawful… sexual behaviour” and denied any “unlawful … racist behaviour”.