LONDON  –  Married at First Sight UK is facing renewed pressure after the broadcast regulator launched an official investigation into the hit Channel 4 reality TV show. In a statement on Monday, Ofcom said it was investigating “a fairness and privacy complaint” about the prime-time show. In May, a BBC Panorama investigation revealed rape allegations from two female cast members on the show – allegations the men involved deny. An Ofcom fairness or privacy complaint can be lodged by individuals who participated in TV or radio programmes. Complaints like these usually relate to claims of being treated unfairly or having unwarranted infringements of privacy on programmes.  It is understood the watchdog is considering a complaint of unjust or unfair treatment from a cast member of Married at First Sight UK. At least one other cast member previously complained to Ofcom about their treatment on the show, but the watchdog dismissed their complaint as it found the broadcaster had no case to answer. An Ofcom spokesperson said such complaints are considered “on a case-by-case basis through a detailed and careful assessment process”. Separately, in a letter to MPs in June, Ofcom said it would examine the findings of Channel 4’s review into welfare on the show, and would “urgently” consider whether any further action is required.