An 18-year-old woman was dragged from the roadside into woodland and raped in a horrific attack shortly after she left a village railway station in Berkshire.
The woman was walking away from Datchet railway station at about 10.10pm on Wednesday when she was approached by a man.
Police said she initially tried to ignore his advances, but after a few minutes he grabbed her and dragged her to a wooded area at the junction of Majors Farm Road, Ditton Road and London Road.
Thames Valley Police said the woman was being supported by specialist officers.
The attacker is described as an Asian man of average build, aged about 35 to 45. He had receding black hair which was longer on top but shorter on the sides, and a prominent nose.
He was holding an umbrella and wearing a smart jacket or blazer, a dark patterned scarf and blue jeans.
Detectives have urged witnesses or anyone with information to contact police.