Amanda Bynes has been positioned on a psychiatric maintain after she was discovered roaming the streets bare and alone … TMZ has realized.

An eyewitness tells us … Bynes was seen strolling close to downtown Los Angeles early Sunday morning with none garments. We’re advised Bynes waved a automotive down, telling the driving force she was coming down from a psychotic episode. Amanda herself then known as 911.

Our regulation enforcement sources say Bynes was taken to a close-by police station, the place a psychological well being group decided she wanted to be positioned on a 5150 psych maintain.

Happily, our sources say it does not seem Bynes was harm in any respect through the ordeal, although issues may’ve been a lot worse given the world the place she was discovered.

A supply near Amanda tells us she’s presently hospitalized, and can doubtless proceed to obtain look after a number of days. Usually, a psychiatric maintain solely lasts 72 hours, however it may be prolonged.

It was virtually one yr to the day when Amanda’s 9-year conservatorship was formally terminated. Amanda’s mom was her conservator beginning again in 2013 when it was clear she was having points along with her psychological well being — she was recognized with bipolar dysfunction. After a sequence of weird incidents — together with one the place she set her neighbor’s driveway on fireplace, virtually engulfing her canine in flames — she was despatched to a psychiatric ward for therapy.

Curiously sufficient, Amanda was imagined to attend 90s Con in Connecticut this weekend, an occasion she canceled on on account of sickness.