MPs on the Culture, Media and Sport (CMS) Committee have written to Channel 4 and Ofcom about their response to allegations of rape and sexual assault on Married At First Sight UK.It comes after a star accused her on-screen partner of sexual misconduct while on the Channel 4 show. Two other anonymous women alleged they were raped by their on-screen husbands, while speaking in a BBC Panorama documentary.Chairwoman of the CMS Committee, Dame Caroline Dinenage, said: “The horrifying allegations about Married At First Sight raise serious concerns over whether enough is being done to protect people taking part in reality television.“Both Channel 4 and Ofcom, as the broadcasting regulator, have urgent questions to answer.”A letter to Channel 4 asks about its complaints process for contestants on the programme and the steps taken to ensure the allegations were fully investigated, along with the review announced by the broadcaster.It also questions the broadcaster about its approach to duty of care to participants on its other reality TV programmes.A CMS Committee message to Ofcom asks it about the role of the broadcasting regulator in the complaints process, its powers to investigate potential breaches of the broadcasting code, and the timeline for launching its own investigation into the Married At First Sight allegations.On Tuesday, police urged potential victims of sexual assault on reality TV show Married At First Sight UK to get in touch.