Beautiful actress Sienna Miller was spotted with red scars on her arms, scarring her fans gathered outside a London theatre.

Sienna not only didn't hide her scars from the fans, gathered outside the London's Wyndham Theatre, where she is starring in Shakespeare's "As You Like It", but also lifted her arm and flicked her hair while she spoke with them.

An onlooker revealed: "The cuts looked sore and red raw and seemed to run all the way up her arm."

Miller's spokesman stated the actress was involved in a swim accident, last week, when she had simply scraped her arm against rocks while swimming in the sea.

She said: "Sienna was swimming with friends when she was pushed up against a rock. She has told us the sea was very rough and that her arm was scraped up and down the rock leaving her with scars. She also has scars down her side."