Coronation Street star William Roache has been arrested on suspicion of raping a 15-year-old girl in the 1960s.
A man, aged 81, from Wilmslow, Cheshire, is being questioned at a Lancashire Police station, police said.
The offences are alleged to have been committed in Haslingden between April and July 1967, officers said.
Neither Mr Roache, who has played Ken Barlow in the soap since 1960, nor his representatives have commented.
A Coronation Street spokesman said: "Given that a police investigation is under way it would not be appropriate to comment."
http://www.bbc.co.uk/news/uk-england-22366981