An Egyptian transgender woman arrested for inciting anti-government protests is at risk of torture and sexual violence, activists and rights groups have warned. Malak al-Kashef, 19, has undergone gender reassignment surgery, but it still officially registered as a male in Egypt. She was arrested on Wednesday as part of a crackdown on protests sparked by a deadly train crash in Cairo last week. Early reports suggested she is being held separately from other prisoners. Some activists have expressed concern that she may eventually be placed in detention with the male population, which could put her at risk of abuse.