Photo: Contributed - AP

Sean Young in October, 2011

Sean Young insists a "very stupid security guard" was to blame for her arrest at the official post-Oscars party.

The 'Young and the Restless' star -- who was taken into custody following a citizen's arrest by security guards after allegedly slapping a staff member after being refused her entry -- claims she did nothing wrong and wants a public apology from the Academy.

Writing on her Facebook page, she said: "I just want everyone to know that I was sober, extremely well behaved when a very stupid security guard went postal on me and then the Academy's very stupid lawyer recommended a 'private person's arrest' and I have grounds for a lawsuit against the Academy although I believe a public apology to me would be much better."

Sean -- who has battled alcohol addiction in the past -- claims she was mishandled by the security guard and has the evidence to prove it.

She added: "I am OK and I have the Hollywood Police Stations support who very carefully and kindly photographed the bruises on my arms which this guard is responsible for doing."

Sean was taken into custody by Los Angeles police officer soon after the alleged incident at the Hollywood Renaissance hotel. She reportedly posted a $20,000 bail after she was booked on misdemeanour battery charges.

File: CTV