R&B singer Kehlani was placed a on a psychiatric hold in L.A. yesterday -- after emergency responders arrived to her Hollywood home and determined she posed a threat to herself ... TMZ has learned.
We've learned ... paramedics responded to a medical emergency at Kehlani's home at 1:45 PM on Monday -- and when they arrive we're told "she wanted to harm herself."
Law enforcement sources tell us ... Kehlani was placed on a psychiatric hold and transported to a nearby hospital to a mental evaluation.
Kehlani has already said she was considering killing herself in the wake of rumors she cheated on NBA star Kyrie Irving .