Paris Jackson left a suicide note and then cut her arm with a  meat cleaver … TMZ has learned.

Sources with an intimate knowledge of  the situation tell TMZ … Michael Jackson’s daughter called a  suicide hotline and the person on the other end was alarmed enough to call  911.

Our sources say in addition to cutting her right forearm, Paris had  taken a large number of Motrin pills.

We’re told once Paris was taken by  stretcher to an ambulance and then transported to a nearby hospital, she was  placed under a 5150 psychiatric hold for 72 hours.

She received “numerous  stitches” for the cut.

As for the suicide note … we do not know what  she wrote.

TMZ broke the story … officials first  responded to Paris’ home in Calabasas around 1:30 AM Wednesday morning.

TMZ.com