Singer Toni Braxton has been admitted to hospital in Los Angeles.

The R&B performer said in a tweet on Friday that she's been admitted to hospital because of "minor health issues" related to Lupus.

"But no worries!," Braxton wrote to fans. "I will be out any day now."

The 45-year-old Un-break My Heart singer revealed two years ago she has Lupus, a potentially deadly autoimmune disease that killed Braxton's uncle.

She also suffers from a narrowing of the blood vessels in her heart.

Braxton said in a recent interview that doctors told her the Lupus diagnosis meant her performing career would likely be diminished and the disease helped push her into a recent bankruptcy.