Amanda Bynes ranting on Twitter hours after rehab release

Troubled actress Amanda Bynes has sparked fears she is already struggling to cope after leaving rehab by launching another bizarre rant on Twitter.com.

The Hairspray star was involuntarily committed to a psychiatric hospital on 10 October (14) following concerns over her erratic behaviour, which included rambling online posts accusing her parents of abuse.

She was released on Thursday (30Oct14) because officials ruled she was stable enough to be freed, but within hours of leaving the facility, Bynes sparked concerns it was too soon for her to be walking the streets.

While she was receiving treatment, her parents Lynn and Rick had been granted a temporary conservatorship over her affairs, and Bynes took to Twitter.com on Friday (31Oct14) to repeat the abuse allegations and insist she plans to force a court hearing to regain control of her finances.

She writes, "I am going to court today with my lawyer to prove that I am more than capable of handling my personal life and finances and I am enraged... I got released from the hospital... and I am fully capable of taking care of myself and my finances and my parents just want to take... my money and I trusted them and they continued to lie to me and take from my bank account every day...

"People need to hear the truth about who I really am - I need to show the judge that...I (do) not need ANY help making decisions... So sorry you've been fooled by... my parents, but they are lying about stealing money from me and I cannot continue to allow them... To abuse me any more!"

During the rant, Bynes also told fans she had undergone a procedure in rehab to remove small cysts from under her eyes.